Forthcoming articles

International Journal of Productivity and Quality Management

International Journal of Productivity and Quality Management (IJPQM)

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International Journal of Productivity and Quality Management (71 papers in press)

Regular Issues

  • The relationship between Total Quality Management (TQM) practices and organizational image in the hospital industry: an empirical examination.   Order a copy of this article
    by Faisal Babu, Sam Thomas 
    Abstract: Purposes: The purpose of this paper is to depict the role of leadership in implementing total quality management (TQM) practices in hospitals and their relationship to the formation of the organizational image by investigating the perceptions of hospital leaders in the context of the Indian healthcare system. Design/methodology/approach: A survey of 265 employees including administrators, managers and heads of departments of 15 NABH-accredited hospitals in Kerala was conducted based on a questionnaire. Structural Equation Modeling (SEM) was done with the use of WarpPLS 50 to test the structural model. Findings: This study shows that leadership is acting as the key driver in implementing quality systems in hospitals and the important TQM practices considered in this study were able to explain the major portion of the variance in the dependent variable and organizational image. Management leadership and the other four TQM practices - information and analysis, human resource management, process management and supplier management - were the significant predictors of the organizational image. Implications: For the effective and efficient implementation of healthcare quality management systems, highly committed and quality oriented leadership style has to be developed. Through practising TQM elements a positive image of the organization can be brought about. Originality/value: This research effort focuses on assessing to what extent management leadership is related to major TQM practices and organizational image and, also identifies the major predictors of the organizational image. So this study provides a foundation for hospital quality practitioners and management for implementing quality practices aimed at improving the organizational image.
    Keywords: Total Quality Management (TQM); Management Leadership; Organizational Image; Hospital; Healthcare/Hospital Accreditation; NABH; Quality Management Practices; Healthcare/Hospital Quality.

  • Evaluating bikesharing service quality : A case study for BIXI, Montreal   Order a copy of this article
    by Mukesh Verma, Anjali Awasthi 
    Abstract: Public transportation is vital to citys economy and public health. It has always been an important part of human life, which has aided not only in travel time savings but also giving a medium of leisure and health in more ways than one. In this paper, we address the subject of bike sharing with focus on customer satisfaction and quality. A SERVQUAL based approach is proposed to measure bikesharing service quality. Five dimensions namely tangibility, reliability, empathy, assurance and responsiveness are investigated. A questionnaire study with users of bikesharing service called BIXI in Montreal is conducted. 313 responses are received. SERVQUAL and Compliment/Complaint analysis is done to identify areas of improvement or negative gaps where customer perceptions are lower than expectations. Suggestions to cover these service quality gaps are provided.
    Keywords: Bike sharing; Service Quality; Gap Analysis; SERVQUAL; Compliment/Complaints Analysis.

  • Developing a Qualitative Model of Productivity for Service Companies Using Fuzzy analytic hierarchy process: A case study   Order a copy of this article
    by Changiz Valmohammadi, Milad Akhlaghi Motlagh, Mahmoud Modiri 
    Abstract: The main purpose of this study is to develop a qualitative model of productivity, in order to determine the dimensions and measures of efficiency and effectiveness and their related weights of an Iranian leading Internet service provider company Known as of Dadeh Gostar-e Asr-e Novin. The population of the study is comprised of an 8 members of the surveyed company including managers of various functions who are expert in their working domain. In this research three questionnaires were designed and used to collect data in accordance with the objectives of each phase. Also, Fuzzy analytic hierarchy process (FAHP) was used to analyze the data in the final phase and to calculate the weights of the dimensions and measures of the both factors of efficiency and effectiveness based on the proposed qualitative productivity model. The main finding of this study is the qualitative model that was developed to identify various dimensions and their related indicators of efficiency and effectiveness of a service organization. Based the obtained weights for both efficiency and effectiveness factors which are 0.5, it could be concluded that surveyed company needs to improve the identified dimensions of efficiency and effectiveness factors equally to increase its qualitative productivity. This study develops dimensions and various measures of efficiency and effectiveness of Service Company which could help the surveyed company to accomplish their strategic objectives. Also, this model could be used as a guideline for other service organizations to design and develop based on their own requirements and necessities.
    Keywords: Qualitative Model of Productivity; Fuzzy Analytic Hierarchy Process (FAHP); Efficiency; Effectiveness; Service Companies; Case Study.

  • Evaluation of TPM Strategies for Manufacturing Performance Improvement of Indian SMEs for Strategic Success   Order a copy of this article
    by Abhishek Jain, Harwinder Singh, Rajbir S. Bhatti 
    Abstract: Performance improvement of Indian organizations plays a vital role to survive in this competitive era. Indian Small & Medium Enterprises (SMEs) are the heart of large organizations because every large organization is purchasing a number of components from SMEs. Now-a-days, it is very essential to find the appropriate improvement strategy to implement in Indian SMEs for their manufacturing performance improvement. In this study, the authors have made a qualitative model to find the preferred improvement strategy (TPM Strategies) for implementing them in Indian SMEs by using an Options field methodology (OFM), Options profile methodology (OPM), Analytic Hierarchy Process (AHP) and Fuzzy set theory (FST). For this, first of all find various issues concerning improvement strategies and performance improvement through a questionnaire. OFM has converted these issues into options and then categorize them. The authors have identified 4 improvement strategies as profiles or a Course of actions by using OPM. Pairwise comparison of AHP methodology is used to find the weight of various objectives of manufacturing performance improvement. And finally, the authors have used FST to rank these four improvement strategies by making weighted position matrix and dominance matrix. The present work identified the ranking of TPM strategies for manufacturing performance improvement through multi criteria decision making (MCDM) methodology.
    Keywords: TPM; SMEs; TPM strategies; OFM; OPM; AHP; FST; manufacturing performance improvement.

  • Quality Management to facilitate product introduction across borders   Order a copy of this article
    by Promporn Wangwacharakul, Martina Berglund, Ulrika Harlin 
    Abstract: This paper explores how quality management (QM) can be used to mitigate managerial challenges in new product introduction (NPI) across national borders. A longitudinal case study involving one Swedish and one Chinese company was conducted. The data were collected through 35 semi-structured interviews and five workshops with employees and managers of several functions before, during and after NPI in a product development project. Several managerial challenges in the cross-cultural collaboration were revealed. The study demonstrated that lack of understanding of cultural differences negatively affected the NPI process and product quality, but these challenges could be handled by a QM approach. Therefore, this paper proposes QM to help mitigate managerial challenges in cross-cultural NPI. The paper contributes to earlier research on the application of QM and the NPI field by suggesting QM as a means to bridge cultural gaps and facilitate NPI across borders.
    Keywords: Cross-cultural collaboration; cross-cultural management; managerial challenges; new product development; industrialisation; Sweden; China; quality management; case study; longitudinal case study.

  • The new conceptual model for print management: Total Production Management   Order a copy of this article
    by Nagaraj Kamath, Lewlyn L. R. Rodrigues 
    Abstract: Purpose: Print companies spend a lot in the maintenance related activities, which can be significantly reduced by focusing more on managing operations. The work presented here contributes towards the development of a conceptual framework for operations management in the printing industry. This study also analyses the implications of using the proposed model (Total Production Management) in a printing press. rnMethodology: This study identifies the constructs available in the best industrial practices through literature review. The proposed conceptual model integrates components, thus identified, with other sociotechnical variables. The soundest practices of Total Quality Management (TQM), Total Productive Maintenance (TPM) with human and contextual factors are the core ingredients of the recommended model. rnFindings: The outcome of this study is to develop a conceptual framework for print operation administration that manages a multi-colour offset machine, by incorporating sociotechnical variables in the traditional approaches. rnResearch Limitation: The model elaborated in this paper deals with the print management of multi-colour sheet-fed offset machine only. However, this model has scope to include other pre-press and post press related constructs also. rnPractical implications: Published studies on the combination of sociotechnical variables for print management are insufficient. The conceptual model proposed in this paper would assist the managers to assess, formulate, a suitable strategy for print management, by the blend of sociotechnical variables.rnrnPaper type: Conceptual paper based on literature review.rn
    Keywords: Total Productive Maintenance; Total Quality Management; Human factors; Contextual variables.
    DOI: 10.1504/IJPQM.2019.10022010
     
  • Modeling the Water Supply Service Quality: A Case Study of the Municipal Corporation   Order a copy of this article
    by Surendra Kansara 
    Abstract: The concept of quality recognised as an essential tool in attaining operational efficiency and ultimately performance regardless of whether the product is tangible and intangible like services. Many issues relating to the methodology for measuring the service quality emerge to make it operational. The presented research employs the SERVQUAL scale in gauging service quality of services offered by the Water Supply Department of a municipal corporation. The research also attempts to validate its application. The service dimensions as prescribed by Parasuraman et al. (1985) employed as a measure of service quality. Five-point Likert scale measurement items in a questionnaire used to measure the service dimensions. Data collected through a survey administered to service users. The principal component analysis (PCA) was performed to validate the factor classification. The gaps (Parasuraman et al., 1985) in the service as offered by the Water Supply Department of a municipal corporation calculated.
    Keywords: Public Service; Service Quality; PCA; Case Study; Nashik Municipal Corporation.
    DOI: 10.1504/IJPQM.2019.10018902
     
  • Development of lean production system using value stream mapping approach: A case study   Order a copy of this article
    by NAVEEN VIRMANI, Vikram Sharma 
    Abstract: Intense competition in global market is encouraging management to search for new ways to reduce cost and improve profits. Manufacturing firms are realizing that cost reduction through waste elimination can improve their competitive potential. Lean production concepts can be employed for waste elimination. However, managers find it difficult to identify the key areas for waste elimination. The field of lean production has offered VSM as a visualization tool to identify waste elimination opportunities. Using this tool, it is possible to map the current state and accordingly analyze for achieving waste elimination. In order to illustrate this aspect, the case study presented in this paper shows the way the firms can apply VSM for identifying the potential areas for applying this waste elimination technique. The purpose of this research is to examine value stream mapping (VSM) implementation in a gear manufacturing company located in national capital region of India. The case study shows that the production time, inventory and defects can be reduced significantly. Thus, VSM assists the managers to envisage the current level of wastes occurring in an organization and the future means of eliminating them.
    Keywords: Lean production; value stream mapping; manufacturing firm; quality; customer satisfaction.

  • Productivity improvement in furniture industry using lean tools and process simulation   Order a copy of this article
    by Shyam Murali C, Prabukarthi A 
    Abstract: The objective of the study is to improve productivity of a furniture manufacturing company. Demand forecasts play a crucial role in productivity, improvement and production planning analysing the problems associated with it and there by tackling over production and shortage. Demand forecasting was analysed using three (Simple moving average method, weighted moving average method, Seasonal regression method) different methods in which seasonal regression was found to be more accurate for the current scenario. This method reduces the deviation of forecast by 17.37% which will result in better visibility thus by improvement in productivity. Preliminary survey showed that there were some processes that lead to overall increase in production lead time and industry is not keen in operating the second shift particularly in painting department, which leads to under-utilization of resources. This research work opted for an exploratory study using the Time study analysis and Value stream mapping(VSM) to identify bottleneck processes. Brainstorming session was conducted to plot cause and effect and there by priorities the causes to tackle. Simulation analysis was performed to understand the utilization of man-machine using the current and alternative method. The proposed methods improve the operator utilization to 54% from 29% and output by 50%.
    Keywords: MAD;MSE;VSM;simulation.
    DOI: 10.1504/IJPQM.2019.10024250
     
  • Optimisation algorithms for improvement of a multihead weighing process   Order a copy of this article
    by Alexander Pulido-Rojano, J. Carlos Garcia-Diaz 
    Abstract: Mathematical optimisation is widely used to find the optimal value for an objective function, subject to constraints that try to simulate reality, and is fundamental to improving industrial processes. In this paper, we compare different optimisation approaches to solve the packaging problem in multihead weighing machines. In this problem, each package is made up from the loads in a subset of the multihead weigher's hoppers. The total weight of the packed product must be as close to a specified target weight as possible. We designed and evaluated a set of algorithms for this problem, considering both single-objective and bi-objective optimisation criteria. A new criterion for creating the packages is considered, and a different way of filling of the hoppers is studied with the aim of reducing process variability. Numerical experiments considering both a set of real data and the most important process performance parameters show the usefulness of our study.
    Keywords: optimisation; mathematical modeling; exhaustive search; reduction of variability; process improvement; packaging; multihead weighing process.
    DOI: 10.1504/IJPQM.2019.10019239
     
  • Optimal Maritime Transportation and Ocean Shipping Transaction for Containerized Goods among BRICS Countries   Order a copy of this article
    by Pravendra Tyagi, Gopal Agarwal 
    Abstract: This paper explore the basic elements of maritime transportation, which are the mandatory parts in planning and control activities among BRICS countries, starting from hinterland transportation to port of origin and further to port of destination and end customer in container terminals. It also includes the detailed explanation of the documents needed in on carriage and pre carriage for custom clearance and provides the awareness for minimising the time window of demurrage and detention to avoid or reduce the penalties, followed by terminal operator and ocean carrier responsibilities to arrange fast picking the full loaded containers and returning of the empty containers to depot, decided based on prior discussion held between carrier, terminal operator, freight forwarder and buyer besides this it also encompass the overall managerial activities at each level from supply end to delivery end, resulting managed manoeuvre of cargo containers with least delay in legal and handling processing and achieving satisfactory level.
    Keywords: Maritime Transportation; Freight forwarder; hinterland; detention; demurrage ocean carrier.
    DOI: 10.1504/IJPQM.2019.10019259
     
  • Unified Process Monitoring Strategy for a Facility Engaged In the Production of Multiple Portfolio of Products   Order a copy of this article
    by Anupam Das, Swarnambuj Suman 
    Abstract: The process monitoring strategies have not kept pace with the development in the production systems. Most of the multivariate statistical process monitoring methods deals with single product portfolio. The current article attempts to devise a unified monitoring strategy for monitoring of multiple products or at least different grades of the same product. A case study from an integrated steel plant producing multiple products has been deliberated to validate the monitoring strategy devised. A comparative evaluation of the unified strategy based on the multigroup variant of principal component analysis (PCA) and the individual strategy based on the conventional PCA was carried out on the basis of three parameters viz. the model fit values, fault detection and the fault diagnosis. In all the three parameters, barring some trifling differences, the unified monitoring strategy seems to replicate the individual strategies well.
    Keywords: Principal Component Analysis; Multigroup PCA; Fault detection; Fault diagnosis; Multiple product portfolio.
    DOI: 10.1504/IJPQM.2019.10019270
     
  • Implementation of   Order a copy of this article
    by SHIVA PRASAD H. C, Giridhar B. Kamath, Shaun T. Menezes 
    Abstract: The Japanese housekeeping 5S methodology added with safety has constituted in 6S principles. Implementing the 6S to enhance the productivity of machine, component maintenance, reduction in unnecessary waste, that costs, the safety of workers and overall production efficiency by effective workplace management. This paper attempts to highlight challenges in implementing 6S in a shop floor based on the pre-implementation and post-implementation data and compared on parametric industrial accidents, process time and cost. After 5S implemented, investigating on unorganised production sections, uncomfortable working environment, excessive inventory and lack of safety practices. The results of pre-implementation and post-implementation exhibits a reduction in process time, reduction in costs and industrial accidents reduced with effective safety training to employees. This study shows that 6S implementation has created a positive effect in uplifting the morale of workers by reducing the cost and time of the production process.
    Keywords: Cost; Industrial Accidents; Safety; implementation; 6S.
    DOI: 10.1504/IJPQM.2019.10019285
     
  • Integrity of Food Supply Chain: Going beyond Food Safety and Food Quality   Order a copy of this article
    by Siti Norida Wahab, Eric Kaiyue Ling 
    Abstract: As consumers’ trust and confidence in food have been shaken by food incidents that could be intentional (crime) or unintentional (negligence). This paper examines the issue of food integrity in a holistic approach that goes beyond food safety and food quality. The concept of farm-to-fork from supply chain management being adopted to review the extant literature concerning integrity of food supply chain. From the extensive literature review, food safety system such as HACCP is argued to be insufficient in assuring food integrity because it does not prevent deliberate contamination, while traceability and technology are recognised as important communication linkages that provide transparency and evidence on food integrity across the supply chain. This paper has developed the house of food integrity framework to provide novel insights on the food supply chain by illustrating food integrity as a multi-dimensional concept, which incorporates food defence in addition to food safety and food quality.
    Keywords: Food Supply Chain; Farm-to-Fork; Food Safety; Food Integrity; Food Defence.
    DOI: 10.1504/IJPQM.2019.10019297
     
  • TQM IMPLEMENTATION CHALLENGES: A CASE STUDY OF A BUILDING MAINTENANCE DEPARTMENT OF AN INSTITUTION OF HIGHER LEARNING   Order a copy of this article
    by Mariam Akinlolu, Ruben Ndihokubwayo, Fredrick Simpeh 
    Abstract: The standards of maintenance management of buildings at many higher institutions, need improvement. TQM has proven to be effective in the improvement of quality in the maintenance of building facilities, although many higher institutions are still grappling to implement TQM in the maintenance of their buildings. This study examines the perceptions that maintenance workers have about the challenges they face during the implementation of TQM in the maintenance of buildings of institutions’ of higher learning (IHL), assessing whether there are statistical differences based on workers’ affiliated campuses and their positions. A case study approach utilising quantitative data was used in the study where a questionnaire with closed-ended questions was distributed to purposively sampled maintenance workers in an IHL in South Africa. A significant difference was found in the responses provided by workers positions as regards the impact of TQM challenges in their building maintenance activities.
    Keywords: buildings; challenges; institution of higher learning; maintenance; total quality management.
    DOI: 10.1504/IJPQM.2019.10019467
     
  • Exploring the Applicability of SERVPERF Model in Indian Two-wheeler Industry: A CFA Approach   Order a copy of this article
    by Mohd Adil, Mohd Nasir 
    Abstract: Over the years, after-sales service (ASS) has assumed its importance in the automotive industry. Although, an adequate number of scales and models exist to measure ASS quality, yet extant literature provides evidences in support of two established and well known models/scales viz. SERVQUAL and SERVPERF. But, researchers have raised concerns related to its applicability in a multi-cultural business environment like India. Thus, this study attempts to examine the applicability of original SERVPERF model in Indian two-wheeler industry. Combinations of exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) techniques have been used to understand the item structure, dimensionality and psychometric properties of the scale. Results in this study fail to support the item structure of original SERVPERF model as proposed by Cronin and Taylor (1992). We strongly suppose that this variation is context specific and less generic as originally contended. These results suggest that relying service quality assessment on the original SERVPERF items can be misleading in Indian context. As such, context-specific 18-items are therefore needed to assist Indian automobile companies in their service quality improvement programs. If this fit is achieved, the general welfare of consumers vis-
    Keywords: After-sale service; service quality; two-wheeler; SERVPERF; CFA; test-retest; India.
    DOI: 10.1504/IJPQM.2019.10019470
     
  • A modified control chart for monitoring non normal characteristics   Order a copy of this article
    by Boby John, Subhani S. M 
    Abstract: A process in control and capable of meeting customer requirements can enhance the survival and growth of the business. The systematic use of process improvement methodologies like lean, six sigma, etc., can improve the capability of the process significantly. When the process is highly capable, sometimes it may not make business sense to monitor the process using traditional control charts. It may be better to allow the process mean to vary over a small interval provided the fraction non-conforming is within a pre-specified value. This can be achieved by monitoring the process using the modified control chart. Most of the research on modified control chart discuss the case of normally distributed characteristics. In this paper, the authors extend the modified control chart methodology to monitor non-normal characteristics. The approach is based on Johnson’s system of distributions. The suggested methodology is also demonstrated using two case studies in the paper.
    Keywords: Statistical process control; modified control chart; process capability analysis; non normal characteristics; Johnson's system of distributions.
    DOI: 10.1504/IJPQM.2019.10019471
     
  • Modelling the barriers of green supply chain practices in Jordanian firms   Order a copy of this article
    by Abbas Al-Refaie, Dina Al-Momani, Rawan Al-tarawneh 
    Abstract: This research investigates ten barriers to adoption of green supply chain management (GSCM) adoption in Jordanian firms using interpretive structural modelling (ISM). Twenty experts from academia and 18 industry were interviewed. Structural self-interaction matrix (SSIM) is developed and then adopted to construct the reachability matrices. The results of ISM model revealed that lack of support from government barrier achieved the highest driving power followed by the barrier cost implications and lack of customer awareness. Moreover, the linkage barriers were the IT implementation problem, resistance to technology advancement adoption, market competition, lack of management commitment, supplier reluctance to change towards GSCM, and lack of sustainability of certificate ISO 14001. These findings suggest that government authorities and top management should resolve barriers at the strategic level by developing effective regulations and incentive policies that enhance customer awareness, supplier commitment to the application of GSCM practices. Further, top managements should ponder on evolving strategies that generate awareness about GSCM adoption. In conclusion, the developed ISM model may provide a valuable guidance to decision makers to understand interdependence of the barriers, determine the required actions to overcome their impacts, and adopt efficient methodologies for effective implementation of GSCM practices in Jordanian firms.
    Keywords: GSCM; Interpretive structural modelling; Barriers; Supply chain; MICMAC analysis.
    DOI: 10.1504/IJPQM.2019.10019479
     
  • Enhancement of the competitiveness and the financial capability of a manufacturing process through a new Value Stream Mapping approach.   Order a copy of this article
    by Soltani Mohyiddine, AOUAG Hichem, MOUSS Mohammed Djamel 
    Abstract: The organisations having a futuristic look and aiming to impose their presence in the industrial field for a long possible term, are seeking for finding solutions linked to controlling their cash flow and assessing their competitiveness performances. Therefore, the purpose of this paper is to propose a new quality and cost value stream mapping for monitoring the costs consumption and assessing the competitiveness of a company. We use three key concepts namely life cycle costing for estimation of the most influential costs on the manufacturing process, the weighted DPMO and Sigma level for assessing the quality level and the competitiveness of the company. Finally, the data obtained are mapped using value stream mapping method for enabling the determination of dysfunctions in the cost and quality context.
    Keywords: Defects Per Million Opportunities; Life Cycle Costs; Sigma level; Value Stream Mapping,.
    DOI: 10.1504/IJPQM.2019.10019484
     
  • AHP-VIKOR based methodology for determining maintenance criticality   Order a copy of this article
    by Nitin Panwar, Sanjeev Kumar, Rajesh Attri 
    Abstract: The paper aims to develop a new methodology based on integrated multi-attribute decision making approaches, i.e., analytic hierarchy process (AHP) and vlse kriterijumska optimizacija kompromisno resenje (VIKOR) technique for finding the maintenance criticality of the system by ranking its failure causes. The ranking is framed by considering five criteria namely likelihood of failure occurrence, likelihood of non-detection, downtime length, standby part criticality and safety risk. In the proposed methodology, first the priority weight of each criterion is calculated by using AHP approach and then VIKOR method is applied for finding the ranking of failure causes in order to select the proper maintenance strategy. An actual case study of pulping system for a paper production industry is performed to select the maintenance strategy in order to demonstrate the use of the proposed methodology.
    Keywords: Maintenance; AHP; VIKOR; FMEA; MCDM.
    DOI: 10.1504/IJPQM.2019.10019485
     
  • Productivity enhancement of assembly line by using Maynard Operation Sequence Technique (MOST) after identification of Lean wastages   Order a copy of this article
    by Raj Kumar, Parveen Kalra, Suman Kant 
    Abstract: The proper utilisation of available resources and appropriate time to complete a task play a crucial role to define the productivity of a line-based manufacturing industry. The high productivity is essential to meet customer demand. If the company fails to meet customer demand, it measures in terms of utilisation of available resources and time required to complete a task. An assembly line includes non-value-added activities and other wastages which lead to lower productivity. Keeping these views in this study, Maynard operation sequence technique (MOST) has been used to reduce cycle time, operation cost and maximise the utilisation of manpower after identification of lean wastages by using Toyota 3M model. The combination of lean manufacturing and MOST has been used as a technique which improves the efficiency of line by 11.23%. The statistical test has been performed by using R programming language to check the significance of applied technique.
    Keywords: Maynard Operation Sequence Technique (MOST); Predetermined Motion Time System (PMTS); Productivity; Lean wastages; Non-value-added activity; Assembly line; Standard time; Line layout.
    DOI: 10.1504/IJPQM.2019.10019542
     
  • Personal Values, Cultural Competence, Self-confidence: Comparation among Korean, Japanese, Chinese, and Indonesian Employee   Order a copy of this article
    by Rusman Frendika, Sri Suwarsi, Dudung Abdurrahman 
    Abstract: The role of personality in work-related behaviours and values has gained renewed attention over the past decade. As the opening of the free trade era, many local employees feel less confidence to compete with expatriates. This research investigates the differences of the influence of personal value and cultural competence towards self-confidence whether directly or through personal branding. Based on cross cultural analysis among expatriate of Korean, Japanese, Chinese and local employees. The ANOVA and SEM AMOS multiple group analysis used and the empirical finding indicate that the personal branding have negative impact to self-confidence. Cross cultural analysis found that cultural competence more dominant influence towards self-confidence than personal values between expatriates and local employees.
    Keywords: Personal values; Cultural competence; Self-confidence.
    DOI: 10.1504/IJPQM.2019.10019635
     
  • Prevalent General and Preventive Maintenance Practices in Indian Process Industry   Order a copy of this article
    by Amit Chopra, Anish Sachdeva, Arvind Bhardwaj 
    Abstract: The purpose of this paper is to highlight the importance of general and preventive maintenance practices in the process industries of India. Data for the analysis was collected through a structured questionnaire from the reputed process industries of India. Statistical techniques cluster analysis and one-way ANOVA were used to investigate the maintenance scenario in the Indian process industry. The study highlighted the status of important practices related to the General maintenance and Preventive maintenance (PM) in the process industry and emphasised on strengthening of maintenance activities in Indian Process industry especially in the changing needs of the Industry 4.0.
    Keywords: Maintenance Scenario; Process industry; Preventive maintenance; General maintenance; Indian Industry.
    DOI: 10.1504/IJPQM.2019.10019636
     
  • Transformational Leadership as an Antecedent for Organizational Commitment and Job Performance in the Banking Sector of Jordan   Order a copy of this article
    by Mohammed Iqbal Al-Ajlouni, Nawaf Alghusin 
    Abstract: Guided by social-exchange-theory, present study examined transformational leadership (TL) as an antecedent for organisational commitment (OC) and its subsequent influence on job performance (JP). Through using a structured self-administered questionnaire, data were collected surveying (439) non-executive employees operating in (15) banks listed in Amman-Stock-Exchange through non-probability purposive sampling. Structural-equation-modelling using SMART-PLS was utilised and the result reported that TL components achieved 44%, 42.5% and 35.4% of the variance in affective, continuous and normative commitment respectively. Idealised influence did not have any significant effect on any level of OC, whereas intellectual stimulation influenced the three levels of OC. Individualised consideration influenced only affective and continuous commitment, and inspirational motivation influenced only normative and continuous commitment. Moreover, only affective commitment was significant in influencing JP and accounted for 82% of the variance. Following the results, discussion and implication were provided. Also, directions and suggestions for future researches were presented.
    Keywords: Transformational leadership; organizational commitment; job performance; Social Exchange Theory; quantitative; Banking Sector; Jordan.
    DOI: 10.1504/IJPQM.2019.10020522
     
  • Overall equipment effectiveness (OEE): a review and development of an integrated improvement framework   Order a copy of this article
    by Chew Keat Cheah, Joshua Prakash, Kok Seng Ong 
    Abstract: The paper reviews the background of OEE and various improvement frameworks and explores their limitations. The review found that there is a lack of improvement frameworks with systematic steps specifically developed for OEE implementation. In addition, it was found that improvement frameworks of different methodologies do not fully capitalise on the use of performance measures as benchmarks and improvement drivers although they provide structured improvement steps/guidelines. These findings show there is a need for a new integrated OEE improvement framework that incorporates the advantages of both OEE and improvement frameworks. By encompassing the core characteristics of OEE and synergising the strengths of improvement frameworks, the new framework will provide OEE practitioners a systematic guidance in carrying out improvement implementation. It will also provide overall directions on how to carry out OEE improvements and allow the practitioners to make better decisions regarding project management.
    Keywords: OEE; improvement frameworks; manufacturing; performance measure; benchmark; prioritization; implementation.
    DOI: 10.1504/IJPQM.2019.10020889
     
  • Improving the Formulation of the Industrial Paints Using FMEA and Taguchi Approaches   Order a copy of this article
    by Hamid Reza Peikari, Gholamreza Salehi, Arash Shahin 
    Abstract: The aim of this study is to explain how the quality of industrial paints can be improved by failure modes and effects analysis (FMEA) and Taguchi design of experiments. For this purpose, a paint manufacturer was selected and FMEA was applied to identify and prioritise the paint problems. Taguchi was also used to identify and determine the levels of the factors influencing the quality of products. L18 array was selected for designing the required experiments and linear graphs were applied to identify interactions among factors. Findings indicated that the best quality was obtained for the experiment with the characteristics of granule size higher than 10, peak metal temperature (PMT) of 232 degrees centigrade, pigment of high quality, resin content of 55%, catalyst content of 4.1%, using plate with medium quality and maximum content of additives. Results also indicated a decrease of average RPN in all of the identified problems.
    Keywords: Taguchi; failure modes and effects analysis (FMEA); paint; risk priority number; orthogonal array.
    DOI: 10.1504/IJPQM.2019.10021676
     
  • Integrating Kano's Model into Quality Function Deployment to Facilitate Decision Analysis : A case study at a Medium Enterprise of Export Garment Manufacturer in Bali   Order a copy of this article
    by Elia Oey, Eunike Gabriella 
    Abstract: Capturing, understanding and acting towards customer needs are a constant challenge to any firm. With globalisation, this need become complex, overwhelming, yet necessary. This research was a case study in a medium size specialty-garment manufacturer in Bali, Indonesia. The studied company sells high quality sarong and beach wear to export markets. To improve their marketing and operation management toward their customers, this study helped to identify and quantify the customer attributes using combination of gap and Kano model. The result was then followed up by generating technical attributes and possible action plan using quality function deployment (QFD) methodology. The result showed top three customer attributes are on time delivery, reasonable price, and fast production lead time, and recommended to improve in post-manufacture quality inspection control, laundering control, dyeing and printing control, hiring more lease sewing operator, and periodical design update based on season. The study was also able to apply systematic methodologies that can be applied even to a medium size firms for them to improve their management.
    Keywords: Kano; QDF; customer attributes; technical attributes; medium enterprise.
    DOI: 10.1504/IJPQM.2019.10022042
     
  • Dynamic Slicing of Aspect-Oriented Software: An UML-based Approach   Order a copy of this article
    by Jagannath Singh, Abhishek Ray 
    Abstract: In this paper, we propose a technique to compute the dynamic slice of UML models for aspect-oriented software. The UML architectural model for aspect-oriented software represents the core components, aspectual components and the relationship between them. Firstly, we construct aspect-oriented model dependence graph (AOMDG) as an intermediate representation of the UML model for aspect-oriented software. AOMDG is a combination of aspect-class dependence graph (ACDG) and aspect-sequence dependence graph (ASDG). ACDG is constructed by using a set of class and set of aspect class diagrams and ASDG is constructed by using a set of sequence and aspect sequence diagrams from the UML architectural model. Then, we propose an algorithm to compute the dynamic slice by traversing AOMDG by marking and unmarking the nodes for a particular scenario during run-time.
    Keywords: Aspect; Advice; Aspect-class dependence graph; Sequence-class dependence graph; Aspect-Oriented Model Dependence Graph.
    DOI: 10.1504/IJPQM.2019.10022202
     
  • Assessment of Sand Reclamation Techniques and Sand Quality in Thermal Reclamation   Order a copy of this article
    by Suyog B. Rayjadhav, Digvijay A. Mhamane, Vasudev Shinde 
    Abstract: In foundry, sand-moulding takes maximum share of production than other moulding methods. So the foundry requires huge quantity of sand daily. To safeguard environmental issues it is necessary to reuse the sand repeatedly otherwise it also increases disposal cost. In view of increasing demand from environmental and economic aspects, the assessment of sand reclamation systems becomes outmost importance. This study illustrates the various sand reclamation techniques like dry, wet, thermal, cryogenic and microwave reclamation in term of their procedure and assessment. The thermal sand reclamation system is developed comprising of sub units like fluidised bed combustor and fluidised bed sand cooler for 20 kg sand capacity and tested for chemically bonded sand casting. In the present study, developed thermal sand reclamation system is tested and results are compared with different sand reclamation systems. The no-bake-sand can be satisfactorily reclaimed by newly developed thermal sand reclamation technique with appropriate sand quality.
    Keywords: Sand molding; Binders; Sand reclamation; No-bake; ADV; LOI; Grain Size.
    DOI: 10.1504/IJPQM.2019.10022203
     
  • Statistical Investigation of Lean Six Sigma For Waste Reduction in Indian SMES By Identify Rank Define Analyze Improve Control (IRDAIC) Model   Order a copy of this article
    by P.N. Ram Kumar, K.P. Satish 
    Abstract: Lean manufacturing is capable of reducing the existing rates of production to a reasonable amount and also to raise the productivity by improving the quality of the material, and hence to maximise the number of customers. In this research paper, the LSS is practiced in the small and medium scale industries for improving the productivity of the firm. For that, a new statistical method named identify rank define analyse improve control (IRDAIC) model is actualised in the Indian SMEs for handling the survey. For optimising the industrial parameters multiple nonlinear regression analysis and enhanced grey wolf optimisation is used in this paper. The proposed hybrid statistical assessment and optimisation process is executed and evaluated in the working platform of MATLAB in terms of production cost. Ultimately, from the evaluation the proposed novel statistical optimisation technique is optimal for improving the productivity of the Lean Six Sigma manufacturing firm respectively.
    Keywords: Lean Manufacturing; Lean Six Sigma; Small and Medium Industries (SMEs); Identify Rank Define Analyze Improve Control (IRDAIC); Multiple Non-Linear Regression Analysis (MNLRA).
    DOI: 10.1504/IJPQM.2019.10022211
     
  • Performance Assessment of Talent Management System Via Using System Dynamic Approach and Scenario Planning (Case Study: Iran Falat-Qhare Oil Company   Order a copy of this article
    by Aliakbar Hasani, Saeid Aibaghi Esfehani, Abolfazl Lotfi 
    Abstract: Nowadays, talent management becomes more complicated as a consequence of a dynamic business environment and facing with extensive and delayed feedbacks of various economic and social factors. Therefore, there is a need to design an appropriate human resource management to attract, employ, develop, and retain talented staff. The aim of this study is to propose a comprehensive model for talent management via using a system dynamics approach. In addition, fuzzy multi-criteria decision-making method is used to assess the considered improvement strategies. The proposed model is applied to Iranian Falat-Ghare Oil Company. Obtained results indicate that talent management process plays a key role in the organisation’s performance. Improvement opportunities to increase the total efficiency of the talent management system are identified. By using scenario analysis, key process indicators of talent management system are investigated to achieve the organisation goals. Organisation’s efficiency can be significantly increased by adopting appropriate talent management strategies.
    Keywords: Human resource; Talent management system; Performance assessment; System dynamics; Scenario planning.
    DOI: 10.1504/IJPQM.2019.10022262
     
  • Cost value stream mapping as a lean assessment tool in a small scale industry   Order a copy of this article
    by B. RAJESH MENON, P.R. Shalij, Kiron K.R., J. Sreejith, P. Sajeesh 
    Abstract: Value stream mapping (VSM) is a lean tool which addresses the non-value added activities in time domain. But, it fails to address it in a cost domain. In this work, a new tool called cost value stream map (CVSM) is proposed, which addresses the problems encountered in conventional VSM and cost-time profile (CTP) and maintaining the advantages of both. The determination of work in process inventory and non-value added costs incurred by using CVSM are demonstrated by presenting a case study. An SME in Kerala, India is selected for this. Lean techniques applied on the various non-value added activities in the order of their cost investments 27% reduction in lead time, 27%
    Keywords: VSM; Cost Investment; lean tools; CTP; Adjustable Prop.
    DOI: 10.1504/IJPQM.2019.10023147
     
  • Integrating Kano Customer Satisfaction Coefficient and SIPA Grid for Service Quality Improvement   Order a copy of this article
    by Elia Oey, Tiara Paramitha, Novita Novita 
    Abstract: Understanding what customer wants and how to action against them is crucial for service industry, since customers and their interaction are part of the product offering. The research was a case study of a water park in east suburb of greater Jakarta area, Indonesia. The objective of the study was to help the studied company to identify what service attributes relevant for the water park and which ones are important to be improved. The study categorised service attributes using Kano model in order to capture possible nonlinear relationship between importance and satisfaction. The result was then analysed using SIPA grids by benchmarking its performance against two competitors. The result showed that currently there are only some
    Keywords: Kano CS Coefficient Grid; SIPA grid; Water Park; benchmarking; sensitivity analysis.
    DOI: 10.1504/IJPQM.2020.10023286
     
  • Driving Process Improvement from Customer Preference with Kansei Engineering, SIPA & QFD Methods   Order a copy of this article
    by Elia Oey, Bernice Ngudjiharto, Wennie Cyntia, Monique Natashia, Scherly Hansopaheluwakan 
    Abstract: Todays competitive market forces companies to continuously seek ways to accommodate customer needs and requirement in their product and process improvement. The study is a case study in an instant concrete manufacturer seeking ways to improve its process in order to win its market share. The study used the Kansei engineering approach to capture what customers want. The generated customer attributes were then measured and benchmarked against two competitors. SIPA grid was used to group the attributes into clusters of importance. Based on SIPA grid clustering, house of quality was built, and technical attributes were generated as action plans for improvement. The results recommended the studied company to focus on top five action plans, namely computerised system to ensure quality, bulk pricing, bundle promotion, and 1
    Keywords: Kansei Engineering; SIPA; QFD; Concrete.

  • Impact of implementation of ISO 22000 on food safety throughout the supply chain: Insights from Poland, Slovakia & Portugal   Order a copy of this article
    by Dominik Zimon, Pedro Domingues 
    Abstract: This study aims to determine the impact of standardised food safety management systems on food safety throughout the supply chain. The research was carried out among several European countries on the legitimacy of implementing the requirements of ISO 22000 and an attempt was carried out to compare how the standard is perceived by entrepreneurs operating in the east and west of Europe. Throughout all the research process, great attention was paid to the impact of the ISO 22000 standard on the functioning of logistics processes in supply chains as this aspect is scarcely addressed in the literature on the subject. According to the authors, the research results may prove useful for European entrepreneurs considering the implementation and certification against the requirements of the ISO 22000 standard.
    Keywords: ISO 22000; Food Safety Management System; Supply chain; Poland; Slovakia & Portugal.
    DOI: 10.1504/IJPQM.2019.10023773
     
  • An Interpretative Structural Modeling (ISM) approach to analyzing root causes of defective jobs: A case study in an automobile service industry   Order a copy of this article
    by Dharyll Prince Abellana 
    Abstract: This paper addresses, explores, and analyses one of the critical productivity and quality problems in the automobile service industry, which is defective jobs or rework due to bad repairs through a case study conducted in Cebu City, Philippines. The paper determined 22 potential causes of the quality problem through the focus group discussion. An interpretative structural modelling is adopted to model the interrelationships of the identified causes in a hierarchical structure. The study has two primary outputs: 1) a list of potential causes of defective jobs; 2) a digraph presenting the interrelationships of the determined causes. The results of this study will significantly contribute to the literature as it provides scholars insights as well as a methodology to analyse quality problems in a causal analysis environment. Moreover, it will also be beneficial to practitioners as it provides them with essential managerial insights that can be useful in practice.
    Keywords: interpretative structural model; ISM; defective jobs; rework; automobile service; causal analysis.
    DOI: 10.1504/IJPQM.2020.10023782
     
  • Presenting a Productive and Sustainable Model of Integrated Management System for Achieving an Added Value in Organizational Processes   Order a copy of this article
    by Ramin Rostamkhani, Morteza Abbasi, Mohammad Hosein Karimi, Mahdi Karbasian 
    Abstract: The present research mainly aims at a presenting of productive and sustainable integrated management system model, which can create or increase an added value in all organisational processes and sub-processes. The key tools for the realisation of this goal are the important units mostly observable in today’s organisations. The main core of the study is developed to implementing the mentioned model by including the three international standards (ISO 9001, ISO 14001 and OHSAS 18001) in a selected industry. The first innovation of this research is the introduction of process capability indices in the form of comprehensive tables and descriptions of each unit’s role in achieving the desired productivity and sustainability. Also, for the first time, proper control charts are used to provide assurance of the controlled flow of data. The second novelty of the study is the verification path the model proceeds in the determined scope.
    Keywords: Integrated Management System; Productivity; Sustainability; Organizational Processes.
    DOI: 10.1504/IJPQM.2019.10023794
     
  • Matrix Based Tolerance Analysis for Multi-Component Selective Assembly with Geometric and Dimensional Features using Genetic Algorithm   Order a copy of this article
    by A.K. Jeevanantham, Chaitanya S.V, Rajeshkannan Ananthanarayanan 
    Abstract: Tolerance analysis (TA) is a method of investigating how the geometric and dimensional tolerance (GDT) deviations in each component propagate and affect the functional requirements of the product. Total deviation in an assembly fit can be controlled by selecting the components of the assembly through a purposeful strategy, called selective assembly (SA). In this paper, the matrix model of TA is applied in SA. The surface-based and shape closure analyses are done using the principles of TTRS and MGDE, and the assembly fit is modelled in terms of displacement matrices. The conventional method of dividing the components into groups only by the deviation on dimensional tolerance (DT) alone is replaced by integrated GDT. The effect of rotational displacements in component features on assembly fit is verified. A two-dimensional, worst case, rigid TA in SA is demonstrated. The best combinations of assembly components are obtained through genetic algorithm.
    Keywords: Selective assembly; Tolerance analysis; Matrix model; Assembly clearance variation; Genetic algorithm.
    DOI: 10.1504/IJPQM.2019.10023797
     
  • Leagile manufacturing paradigm in the production of jet pump   Order a copy of this article
    by K. Balakrishnan, S.R. Devadasan, Thilak VMM, D. Selvi Soundaram 
    Abstract: One of the types of pumps that find high demand from the customers is jet pumps. Today, pump manufacturing companies are required to produce conventionally designed jet pump as well as improved and innovative forms of the same to meet the demand of several customers. This kind of demand can be fulfilled only when leagile manufacturing paradigm is implemented around the production of jet pumps. In order to have a successful implementation of the same, while pursuing the research reported in this paper, a model named as 'pumping for leagility' (PFL) was designed and applied in the case of producing jet pumps in a typical Indian pump manufacturing company. The PFL model has eight steps comprising of 31 activities. By applying PFL model, the nuances of developing leagile manufacturing paradigm in real-time practice was examined and the extent of implementation in the production of jet pump was studied.
    Keywords: Leagile manufacturing; productivity; decoupling point; plant layout; organisational structure.
    DOI: 10.1504/IJPQM.2019.10023815
     
  • The Concept of Ergonomic Evaluation for Industrial Building Spaces   Order a copy of this article
    by Deevesh Sharma, Monica Sharma 
    Abstract: Continuously providing world class products to the customers requires state of the art industrial facilities and some of the brightest minds in the world. The employees and the industrial setups are the most valuable assets of any industry. The paper discusses a concept model for evaluation of industrial building spaces which would safeguard the employees with safety and healthy working environment as well as contribute towards improving the efficiency and productivity of work. Significant ergonomic factors like illumination, acoustics, thermal, vibration and utility are discussed to be key contributors to the evaluation methodology. Some acceptable and healthy ranges of these factors and how they can be used to evaluate an industrial space are discussed. How requirement-based evaluation is more accurate and precise is also covered in this paper.
    Keywords: ergonomic evaluation; industry; building spaces; lighting; vibrations; illumination; acoustics; ventilation; productivity; quality.
    DOI: 10.1504/IJPQM.2020.10023882
     
  • Empirical Study of the Performance of Ontario’s Pulp and Paper Mills Using Bootstrap Data Envelopment Analysis   Order a copy of this article
    by Mohamed Dia, Shashi Shahi 
    Abstract: Ontario's pulp and paper mills have been facing extreme competitive pressures due to declining markets and low-cost competition from around the world, which have affected their performance and relative technical efficiency. This study uses a non-parametric technique, bootstrap data envelopment analysis, in analysing the operational efficiency of 23 pulp and paper mills in Ontario with sample data collected over a period of 17 years (1999 to 2015). The results indicate low levels of efficiencies due to the management of operations as well as the scale of operations, especially during the economic downturns. In addition, we noticed regional differences in the operational efficiencies of these mills. These results provide comprehensive details to mill managers to reallocated future resources.
    Keywords: Bootstrapping; Data Envelopment Analysis; Forest industry; Ontario pulp and paper mills; Technical efficiency.
    DOI: 10.1504/IJPQM.2020.10023952
     
  • Modeling Construction labour productivity using Evolutionary Polynomial Regression   Order a copy of this article
    by Zahra Zangenehmadar, Sasan Golnaraghi, Sabah Alkass, Osama Moselhi 
    Abstract: Construction projects are labour-intensive and labour costs are a substantial percentage of total budget. Impaired labour productivity causes an increase in construction project schedule. Labour productivity is one of the most frequently discussed topics in the construction industry, and modelling labour productivity by utilising different techniques has been getting more attention. It is a challenging task as it requires identifying the influencing factors as well as considering the associated interdependencies. This paper investigates the application of evolutionary polynomial regression (EPR) for modelling labour productivity in formwork installation. EPR is a data-driven hybrid modelling technique based on evolutionary computing and has been successfully applied to solving civil engineering problems. Results obtained from the EPR model were compared with the outcomes of three other methods: best subset, stepwise, and general regression neural network (GRNN). Results demonstrate the predictive superiority of the developed EPR model for nonlinear problems based on statistical performance indicators.
    Keywords: Construction Industry; Labuor Productivity; Loss of Productivity; EPR; Modeling; Regression.
    DOI: 10.1504/IJPQM.2020.10023977
     
  • AN APPLICATION OF THE KANO MODEL AND RETAIL SERVICE QUALITY SCALE (RSQS) TO VIETNAMESE SUPERMARKETS   Order a copy of this article
    by Thu Ha Nguyen  
    Abstract: This paper presents the results of a study applying the Kano model for analysing, classifying, and prioritising customers’ requirements in the context of Vietnamese retail service. A questionnaire based on the retail service quality scale and Kano question form has been designed and collected data from 598 customers of Vietnamese supermarkets. The data has been analysed by Kano model and presented on the four quadrants of X, Y scatter. Analysis results indicate that among the 27 retail service quality attributes, 11 attributes are classified as must-be; five attributes for one-dimensional and seven attributes for attractive. Findings not only provide insight into how Vietnamese supermarket managers would satisfy and delight their customer satisfaction, gain the advantage competitive, and differentiate with their competitors but also prove that Kano model could be well applied with RSQS in the context of retail service environment.
    Keywords: customer satisfaction; quality; service; Kano model; RSQS; Vietnamese supermarkets.
    DOI: 10.1504/IJPQM.2020.10023983
     
  • What is the Role of Expert Intuition in Process Control?   Order a copy of this article
    by Venkat Pulakanam, Mark D. Hanna, Dirk Pons 
    Abstract: Rules of statistical process control (SPC) suggest that processes should not be adjusted by workers without an explicit data-driven management directive. By contrast, in many workplaces, workers are empowered to improve processes and seen as uniquely knowledgeable due to their experience in close proximity to the process. Thus, it absolutely is expected that operators will commit acts of personal agency as they apply their expert intuition. Based on observations of industry practice, we develop a description of expert intuitive process control (EIPC) and a conceptual framework which enables comparison of this approach to SPC and development of postulates regarding the contexts in which each approach is likely to be valued from a practical perspective.
    Keywords: Statistical process control (SPC); personal agency; tacit knowledge; expert; intuition; Expert Intuitive Process Control (EIPC).
    DOI: 10.1504/IJPQM.2020.10024048
     
  • Productivity and Quality improvement through DMAIC in SME   Order a copy of this article
    by Janardhan K. Reddy, Soundararajan Krishnasamy 
    Abstract: During the past three decades, researchers have been advocating the application of define-measure-analyse-improve-control (DMAIC) phases of Six Sigma concept to achieve productivity and quality improvement in small and medium enterprises (SMEs). In this context, the research reported in this paper was carried out in a SME by applying DMAIC phases in the production of the castings of a component called balance weight. While executing the DMAIC phases, it was found that green sand moulding process had to be replaced with shell moulding process to avoid the increase in hardness and rejection of castings due to pin hole defect. On implementing this solution, the productivity increased by 50.42 units per hour and the quality level increased from 3.2 sigma to 4.4 sigma. Altogether, it was found that DMAIC can be used in SMEs to achieve productivity and quality improvement so as to acquire competitive strength.
    Keywords: Quality; Productivity; Six sigma; DMAIC; Shell moulding.
    DOI: 10.1504/IJPQM.2020.10024055
     
  • Relationship between customer collaboration in supply chain management and operational performance of manufacturing companies   Order a copy of this article
    by Thu Ha Nguyen, Chi Phan, Bach Khoa Nguyen, Thi Tu Anh Le, Yoshiki Matsui 
    Abstract: This paper presents the results of empirical analysis on the relationship between customer collaboration practices in supply chain management and operational performance of manufacturing companies. Data were collected between 2013 and 2015 from 304 manufacturing companies in 13 countries across the world in the framework of high-performance manufacturing project. The results of statistical descriptive analysis, correlation analysis and regression analysis indicate that customer collaboration practices have positive relationship with operational performance in terms of quality, cost, delivery speed, on-time delivery and flexibility. This study suggests the researchers and managers to develop and implement a set of customer collaboration practices to improve supply chain management effectiveness.
    Keywords: supply chain management; customer collaboration; operational performance; manufacturing companies.
    DOI: 10.1504/IJPQM.2019.10024086
     
  • Patient satisfaction in hospital emergency services: A perspective from the Portugal.   Order a copy of this article
    by Daniel Ferreira Polonia, Rui Diogo S. Santos, Ana A. C. Dias 
    Abstract: This research paper constructs and validates a conceptual model that identifies the determinants of patient satisfaction with hospital emergency services. The conceptual model is based on an extensive review of the literature on the subject and was validated by 400 interviews in four Portuguese NHS hospital emergency services. Analysis of the data revealed that there are five statistically significant variables that influence satisfaction, whereas satisfaction itself influences the loyalty dimension of the model. Although the sample was diverse and a significant number of patients were interviewed, the study only involved NHS users from one specific region of the country. Nevertheless, it proved possible to use the model to draw several managerial implications and these were analysed for ways in which patient satisfaction with the service could be improved.
    Keywords: Service quality management; hospital emergency services; patient satisfaction; patient loyalty; healthcare services.
    DOI: 10.1504/IJPQM.2020.10024098
     
  • Defining the weights of the EFQM excellence model criteria for different business sectors   Order a copy of this article
    by Yannis Politis, Evangelos Grigoroudis 
    Abstract: EFQM model is Europes most prestigious award for organisational business excellence given to the best performing organisations in Europe. The aim of this paper is to propose a multicriteria approach to assess the weights of the models criteria based on the specific needs of different business sectors. For this reason a two stage process is proposed. In the first stage, criteria weights are assessed according to the rankings of a set of organisations with different scores on the EFQM excellence model criteria given by business experts from specific sectors or and participants of the quality award. The second stage concerns modifications and additional information or restrictions given by EFQM experts in order to improve the robustness of the preference model estimated from the previous stage. Considering that little can be found in literature concerning a general methodology for the construction of sector specific models, the paper proposes a general approach to adjust the weights of the EFQM model criteria to better fit the specific needs of different business sectors.
    Keywords: European Foundation for Quality Management model; EFQM model; multiple criteria decision aid; MCDA; UTA method; group decision making; criteria weights; quality awards; business excellence.
    DOI: 10.1504/IJPQM.2020.10024522
     
  • Extracting Performance Improvement Factors using DEA for a Robust Indian Retail Industry   Order a copy of this article
    by REETI AGARWAL 
    Abstract: The Indian retail industry is facing high growth trajectory which is attracting a number of players both domestic and foreign. Given its role in the growth of the Indian economy, a robust retail industry is the need of the hour. An understanding of the efficiency levels of some of the retail players and an identification of the variables that have an impact on the level of efficiency is required to increase and sustain the robustness of the industry. The current study extracts and analyses performance improvement factors that have an impact on the efficiency of organised retail companies of India by analysing data corresponding to 12 variables for six retail companies over a period of seven years. The findings of the study showed that five out of the six Indian retail companies studied faced inefficiency at least during one of the years over the period of seven years under study. The three input variables that the current study suggest need careful consideration by the companies are handling of receivables and inventories (current assets) followed by advertising and power and fuel expenses.
    Keywords: Productivity; Efficiency; Indian Retail Industry; DEA; Sensitivity Analysis; Indian Economy.
    DOI: 10.1504/IJPQM.2019.10024540
     
  • A Hesitant Fuzzy Model for Ranking Maintenance Strategies in Small and Medium-Sized Enterprises   Order a copy of this article
    by Mohsen Shafiei Nikabadi, S. Behnam Razavian 
    Abstract: Presently, the topic of ranking is very significant. Most of real world affairs can be solved by using decision-making techniques. Selecting and ranking of maintenance strategies are sometimes complicated. They have no proper structure and also have multi-criteria viewpoint. Hence, proper selecting and ranking could be considered as a multiple-criteria decision-making (MCDM). Consequently, the main goal of this research is selecting the best maintenance strategy by applying factor analysis (FA) technique and also decision-making methods in the hesitant fuzzy domain. In this study firstly by applying literature and experts' viewpoints on maintenance, the variables and their sub-variables were identified. Then, to reduce the number of variables, the factor analysis method was used. Additionally, to calculate the weights of sub-variables De Luca-Termini, which is a normalised hesitant entropy method, was applied. Finally, the strategies were ranked by using hesitant fuzzy VIKOR method. According to this research, the maintenance strategy based on reliable has higher priority in comparison with the others.
    Keywords: Maintenance; Factor Analysis; De Luca-Termini entropy; Hesitant Fuzzy; VIKOR,SMEs.
    DOI: 10.1504/IJPQM.2019.10024554
     
  • Performance Study of Eco-friendly dielectric in EDM of AISI 2507 Super Duplex Steel using Taguchi -Fuzzy-TOPSIS Approach   Order a copy of this article
    by Srinivas Viswanth, R. Ramanujam, Rajyalakshmi Gajjela 
    Abstract: In the present study, the application of Pongamia natural ester as a renewable green dielectric (GD) applied in the electric discharge machining (EDM) of AISI 2507 super duplex steel. This investigation aims to study the effect of Pongamia green dielectric in the EDM process. The major process variables such as pulse-on time (TON), pulse-off time (TOFF), peak current (IP), voltage (v) and inter-electrode gap (IEG) on performance measures like material removal rate (MRR), electrode wear rate (EWR) and surface roughness (SR). The Taguchi’s orthogonal array (OA) L27 has been selected for this experimentation. The choice of optimal input parameter settings that are attained by multi-response optimisation of performance measures using Taguchi-fuzzy-TOPSIS technique is TON = 500
    Keywords: EDM; green dielectric; MRR; EWR; SR; Taguchi; productivity; Fuzzy-TOPSIS.
    DOI: 10.1504/IJPQM.2019.10024556
     
  • Risk analysis on the current design of wooden-hulled boats with outrigger using fuzzy FMEA   Order a copy of this article
    by Miriam Bongo, Junny Ann Inot, Claitee Sebios 
    Abstract: In constructing wooden-hulled boats with outrigger, it is imperative to consider design factors that relate to safe operating conditions and sustainability. However, there exists no set of design failure modes in the literature specific to that of wooden-hulled boats with outrigger, thus, making it difficult for stakeholders of the maritime domain to understand fully the risks present in its design and construction. Therefore, this paper applies fuzzy FMEA to assess the risks involved in the design and construction of wooden-hulled boats with outrigger. The proposed methodology is applied in the Philippines, and it is found that high priority should be provided to failure modes pertaining directly to the type of wood used, being the primary component of wooden-hulled boats with outrigger, followed by failure modes specific on the design aspects. With such results, stakeholders are better facilitated on policies to be implemented to achieve an efficiently designed wooden-hulled boat with outrigger.
    Keywords: wooden-hulled boat with outrigger; fuzzy FMEA; risk analysis; safe boat operations.
    DOI: 10.1504/IJPQM.2020.10024642
     
  • Cable Insulation Productivity Improvement using Lean Six Sigma   Order a copy of this article
    by Fikri Dweiri, Samar Ishaq 
    Abstract: Nowadays organisations are finding innovative ways to improve customer satisfaction and increase profitability. This can only be possible if they continuously and effectively improve their products and processes. The purpose of this study is to improve cable insulation process using Lean Six Sigma (LSS). Define, measure, analyse, improve, and control (DMAIC) and failure mode effect and criticality analysis (FMECA) were used to identify one of the critical problems which is break and crack in insulation layer of cables in a case company. The design of experiment (DOE) was used to reduce the occurrence of break and crack in cable insulation. Three main factors (supplier, temperature and pressure) each with two fixed levels were considered. The result showed that supplier and temperature are the only significant main factors at the 95% significance level. All interaction levels were not significant as well as the pressure main factor. The results show that risk priority number (RPN), which is an indicator for productivity improvement, was reduced from 745 to 205. Also the experiment produced fewer defects that lead to improve productivity.
    Keywords: Performance improvement; production line; lean six sigma; FMECA; RPN.
    DOI: 10.1504/IJPQM.2019.10024650
     
  • Generalized Linear Mixed Logit and Probit Models Applied to US Army and Navy Data   Order a copy of this article
    by Jong-Min Kim, Chuwen Li 
    Abstract: We apply the generalised linear mixed model (GLMM) with logit and probit links to data (Stevens and Anderson-Cook, 2017a, 2017b), which is univariate data with binary response of passing or failing for complex munitions generated to match age and usage rate found in US Department of Defense complex systems (Army and Navy). Instead of the generalised linear model (GLM) used in Stevens and Anderson-Cook (2017b), we propose to apply the adaptive Gaussian hermite quadrature approach (GLMM-AGHQ) (Ha et al., 2017) to predict binary response of passing or failing for the Army and Navy data. We suggest two methods to find the best models for the Army and Navy. The first method is based on statistical inference, the variance of random effect for intercept term for every GLMM given in this paper, and the log-likelihood. The second method focuses on the accuracy of prediction of each model. We compare the GLMMs with the GLMs in terms of inter quartile range (IQR) of the residuals. We find that the models capturing random effects lead to smaller IQR which in the end results in the high accuracy of the models. This accuracy is measured by area under receiver operating characteristic curve (AUC).
    Keywords: Logit; Probit; Random Effect; GLM; GLMM.
    DOI: 10.1504/IJPQM.2019.10024849
     
  • Production-Inventory Models considering different Carbon Policies: A review   Order a copy of this article
    by Arindam Ghosh, J.K. Jha, S.P. Sarmah 
    Abstract: Mitigating carbon emissions in supply chains has become an important issue in the recent era. Recently, companies are looking for solutions to lessen carbon emissions associated with their supply chains mainly due to carbon policies imposed by different regulatory bodies. Apart from regulations, competitive advantage, ISO certification, customer satisfaction also influence organisations to adopt green practices in their supply chains. Production and inventory are two important aspects of supply chains, and they contribute to a significant amount of cost and emissions. Organisations try to optimise their production and inventory related activities with operational adjustments while operating under different carbon policies. Over the last couple of years, authors have incorporated different carbon policies while optimising supply chains, especially production-inventory policies. This paper presents a review of quantitative models on green production-inventory problems considering different carbon policies and ends with suggestions for future research.
    Keywords: Carbon Policies; Production-inventory policies; Carbon Emissions; Green Supply Chain; Quantitative models.
    DOI: 10.1504/IJPQM.2019.10024851
     
  • Different management systems: integration or combination?   Order a copy of this article
    by Sugandren Naidoo, Roy Ramphal 
    Abstract: The focus in this paper is on integration and combination, as two important concepts in management systems. In this paper, a definition of integration and combination as related to business management is proposed. The lack of resolution can be extrapolated to basic dissimilarities in the competing resource-based perspectives on strategy and the application of strategy typologies based on those standpoints. A comprehensive literature review will be conducted. The authors identify a high-level meta synthesis of integration and combination definitions as related to business management. The findings argue that there are remarkable differences, but also similarities between the analyses of Schumpeter and Anderson’s theories of integration and combination.
    Keywords: integration; management systems; combination; literature review; business management; strategy; literature review; meta synthesis.
    DOI: 10.1504/IJPQM.2019.10024852
     
  • Interactions Dynamics between the Performance Management System and the Quality Management System   Order a copy of this article
    by Mira Thoumy, Marie Hélène Jobin 
    Abstract: The purpose of this study is to characterise the dynamics between the performance management system (PMS) and the quality management system (QMS). We conducted a comparative case study between two university medical centres. We interviewed 41 participants from eight sub-units of analysis. We also conducted seven hours of meeting observations, 16 hours of management observations as well as a review of 46 documents that were submitted to us by the workers. Our results show that there are four types of possible interactions between the PMS and the QMS which are independence, antagonism, communication and collaboration. Moreover, there are three realms of interactions being the realms of structure, identities and practices. We found that the PMS and the QMS interact more in clinical units. The support services do not have well-developed performance and quality management. Also, the workers involved in operations are disconnected from the concept of performance.
    Keywords: Performance Management System (PMS); Quality Management System (QMS); Interactions; Dynamics; Hospitals; University Medical Center; Quality; Performance; Communication; Collaboration.
    DOI: 10.1504/IJPQM.2020.10024961
     
  • An internal cooperation as a driver of total quality management   Order a copy of this article
    by Gun Jea Yu, Hojin Jung, Kyoung-min Kwon 
    Abstract: Much evidence has been presented on the critical factors for total quality management (TQM) and its effect on firm performance. Studies aiming to understand TQM have examined the moderators on the relationship between TQM and firm performance. Among these moderators, cooperation among teams and departments has been highlighted but rarely empirically tested. Thus, the paper investigates the conditions under which the effect of TQM is intensified using a sample of 565 firms in Korea. We confirmed that TQM is positively associated with firm performance. In addition, the cooperative internal environment, including the levels of cross-functional team (CFT) and of collaboration between R&D and manufacturing departments (CRM), positively moderates the relationship between TQM and firm performance. This study contributes to the current literature on TQM by considering and testing the moderating effects of collaboration environments.
    Keywords: Total quality management; Cross functional team; collaboration between R&D and manufacturing departments.
    DOI: 10.1504/IJPQM.2020.10024969
     
  • A REVIEW ON SHORT-RUN UNIVARIATE QUALITY CONTROL APPROACHES   Order a copy of this article
    by Jeng Feng Chin, Chin-Kok Koh, Shahrul Kamaruddin 
    Abstract: Short-run control charts are used in situations where limited or no data exist about the process, and conventional statistical process control (SPC) charts are considered ineffective for estimating parameters, such as control limits, because they cannot be established in most cases. This study presents a contemporary review on developing various short-run univariate quality control approaches. Considerable literature is systematically collected on the basis of content analysis. Techniques are differentiated on the basis of repetitive and non-repetitive processes. Subsequently, the principles, data sample collection, performance criteria, robustness and applications of quality control approaches are reviewed.
    Keywords: statistical process control; short-run; univariate; control chart.
    DOI: 10.1504/IJPQM.2020.10025095
     
  • Ripple effect of moral hazard: How do CSR misconducts impact firm performance in the dairy industry?   Order a copy of this article
    by Xiaohua Meng, Yunli Zhu, Meiling Zhong 
    Abstract: In this article we study how collective corporate social responsibility (CSR) misconduct affects the market performance of enterprises in the dairy industry. We do this by revisiting the melamine-tainted milk powder event in China. By comparing pre- and post-event retail data of three different types of infant milk powder manufacturers, as well as by analysing the cumulative abnormal returns (CARs) of those milk powder companies listed on stock markets, based on an event study approach, the ripple effect of China's melamine incident as an exogenous shock was investigated. The results show that industrial CSR misconduct has a suppression effect on the enterprises involved, overlapping suppression and spillover effects on domestic enterprises that were not involved, as well as spillover effects for foreign peers. Lessons from the melamine contamination incident and its policy implications should be valuable in promoting the CSR level and sustainability of other similar fast-growing industries in developing countries.
    Keywords: corporate social responsibility; food safety; ripple effect; industrial sustainability; melamine incident.
    DOI: 10.1504/IJPQM.2019.10025096
     
  • Information technology drivers of supply chain agility: Implications for market performance   Order a copy of this article
    by Ayman Abdallah, Haya Fawzi Ayoub 
    Abstract: The purpose of this study is to identify information technology (IT) drivers of supply chain agility (SCA) and examine their effects on the implementation levels of agile supply chains (SCs). It also explores the effect of SCA on market performance (MP). The study analyses survey data collected from 274 manufacturing companies from different industry types in Jordan. These types included machinery and hardware, electrical and electronics, rubber and plastic, chemical, food, textiles and others. Validity and reliability analyses were performed using IBM SPSS Statistics and Amos, and the research hypotheses were tested using structural equation modelling (SEM). The results reveal that all IT drivers, namely, enterprise resource planning (ERP), radio frequency identification (RFID), cloud computing (CC) and Web 2.0 positively and significantly affect SCA. In addition, SCA proves to be positively and significantly related to MP.
    Keywords: Supply chain agility; Enterprise resource planning; Radio frequency identification; Cloud computing; Web 2.0; Market performance.
    DOI: 10.1504/IJPQM.2020.10025097
     
  • A modelling approach to assess the effect of technology on wheat farms performance in semi-arid areas   Order a copy of this article
    by Hayat Lionboui, Fouad Elame, Abdelghani Boudhar, Rachid Hadria, Brahim El Boukari, Tarik Benabdelouahab 
    Abstract: In order to improve socio-economic conditions in rural areas, the purpose of this study is to develop models for estimating wheat yield based on the use of agricultural inputs. The emphasis is not only on increasing production, but on economically efficient production that optimises productive resources. Thereby, a cost efficiency analysis for wheat producers was conducted based on a sample of 111 farmers in the Tadla Plain in central Morocco. To achieve this objective, two models devoted to wheat yield estimation in terms of costs and quantities of agricultural inputs were developed, based on stepwise regression approach. Furthermore, data envelopment analysis (DEA) method was used to analyse the cost efficiency of farms. Overall, this work separates the excess costs related to technical efficiency and economies of scale to cost efficiency in order to understand the type of actions that farmers can take to reduce production costs and ensure their resilience.
    Keywords: Wheat farm; yield model; data envelopment analysis; cost efficiency; performance; profitability; Morocco.
    DOI: 10.1504/IJPQM.2020.10025101
     
  • Firefly Enabled Agility Assessment in Manufacturing Systems   Order a copy of this article
    by Saleeshya P.G, NITHESH R, SANESHKRISHNAN K, SAIKRISHNA S 
    Abstract: The manufacturing processes have now evolved from dinosaur type of enterprise to lizard type known as agile manufacturing. Agility can be enhanced with some trivial change in firm's processes. In this study, an effort has been made to obtain the agility index of two different firms with their currently implemented agile enablers'. The two industries were identified based on the demand pattern, i.e., seasonal and volatile demand. The methodology of AHP is used to obtain effectiveness of the agile enablers’. These effectiveness values are given as input to the FA to obtain the agility index in terms of 'response time’ between market and industry. Based on the results, the firms' can focus on the enabler with least response time to improve business performance through appropriate strategies. The response time of fashion firm is less than that of core-manufacturing firm. Hence fashion firms are more agile than core firms.
    Keywords: Agile manufacturing; Manufacturing systems; Analytic Hierarchy Process; Firefly Algorithm.
    DOI: 10.1504/IJPQM.2020.10025375
     
  • Evaluating the influence of individuals’ personality characteristics on the preference of choosing and buying goods with an emphasis on the moderating role of mental involvement   Order a copy of this article
    by Seyed Fathollah Amiri Aghdaie, Hamidreza Talaie, Paria Soltanpoor 
    Abstract: The present research evaluates the influence of individuals' personality characteristics on the preference of choosing and buying goods with an emphasis on the moderating role of mental involvement. The statistical population of this study is the customers of the Dillards chain store in Austin in the state of Texas in USA. Using the Schumacher and Lumax method, 256 people were selected as a statistical sample and a questionnaire was used to collect data. The collected data were analysed using SPSS and AMOS Software Version 24 with structural equation model. Based on the results, we can state that, among the personality characteristic of these customers, openness to experience, emotional stability, agreeableness and conscientiousness are the most effective ones to create mental involvement that indirectly lead to purchasing decision. Extraversion, agreeableness and conscientiousness also directly lead to consumer preferences.
    Keywords: Individual’s personality characteristic; Mental involvement; Preference in buying; Purchase decision.
    DOI: 10.1504/IJPQM.2020.10025393
     
  • Co-deployment of quality standards: A systematic literature review   Order a copy of this article
    by DAHAR Hind, Ounsa Roudies 
    Abstract: Within a competitive environment marked by strong technological evolution, organisations have to be compliant at the same time with several repositories, norms or standards relating to quality of their processes continuous improvement. Diversity of standards can lead to different issues such as heterogeneity, redundancy and also increasing costs for their implementation in terms of time, resource mobilisation and budget. To solve these problems, the idea is to establish an alignment approach that guarantees the high level of quality wished by using several standards simultaneously. This article is a systematic review of literature specific to methods of alignment of norms and quality standards. We raise the problems caused by lack of alignment, and review existing approaches and their results.
    Keywords: Standards mapping; Standards alignment; Standards harmonization; Multi-model; Quality standards; Quality insurance; ITIL; CMMI; PMBOK; ISO 9001.
    DOI: 10.1504/IJPQM.2020.10025394
     
  • Extension of the model of manufacturing supply chain quality management: an empirical study   Order a copy of this article
    by Arash Apornak, Maryam Amiri Hezaveh 
    Abstract: Supply chain management could flow the quality management from the level of the individual to the entire chain. The cross-compliance with supply chain management and effective relationships between supply chain partners are able to provide the context in which they can play their role in a successful quality management and ultimately improve the quality of the final customer and the profitability and satisfaction. The existing research to develop previous studies that have focused on supply chain quality management, according to this after a survey on different frameworks in the areas of quality management and supply chain from reviewing of literature, the most appropriate framework based on a case study situation has been chosen. Then the data has been gathered from questionnaires and was statistically analysed. The hypotheses of the study have been confirmed and it also suggests that the eight components of the model influence on supply chain quality management.
    Keywords: total quality management; TQM; supply chain management; SCM; production management; quality models; structural equation modelling.
    DOI: 10.1504/IJPQM.2019.10025402
     
  • People management for sustainable SMEs   Order a copy of this article
    by Sooksan Kantabutra 
    Abstract: The study identifies people management practices among sustainable SMEs that adopt the Thai philosophy of sufficiency economy. The study adopts multi-data collection methods. 'Grounded theory' is adopted as the approach for data analysis. Emerging people management practices are: 1) identifying core competencies consistent to Thai values; 2) being genuinely concerned for employees; 3) offering life skills training for employees; 4) providing opportunities for employees to suggest ideas and encourage them to take part in decision makings; 5) growing own managers; 6) encouraging employees to contribute to the society and environment. This paper is among the first that explore the relationships between people management practices and corporate sustainability in Thai SMEs and propose theoretical assertions between them for future theory building.
    Keywords: sufficiency economy; sustainable people management; corporate sustainability; Thailand.
    DOI: 10.1504/IJPQM.2019.10018051
     
  • Exploring the factors to make e-commerce and m-commerce ubiquitous and pervasive to improve national productivity of India   Order a copy of this article
    by Sujata P. Deshmukh, Prashant D. Deshmukh, Bhushan T. Patil, G.T. Thampi 
    Abstract: Electronic commerce (EC) and mobile commerce (MC) are leading edge technologies-based practices for doing global, local and context-based business but percentage of retail e-commerce sale in India in 2018 is expected as 1.4% (Retail Ecommerce Sales in India 2014-2018: Disappointing 1% of Total Retail Sales, https://dazeinfo.com/2015/01/07/retail-ecommerce-sales-inindia-growth-2014-2018-report), which is very low as compared to total commerce transactions, and it shows that it is not ubiquitous, though wide penetration of ICT (internet and PC, mobile penetrations) (IAMAI, 2016). So, the aim of this study is to find the ways and means to make EC-MC-based practices pervasive and ubiquitous to improve national productivity in India. This study is an attempt to specify mathematical equations using regression modelling, to describe the relationships between factors to make EC-MC-based practices ubiquitous and pervasive in India and productivity improvements as proposed by theory. The design methods and procedures used in this study are based on statistical theory to obtain representative samples from the real world.
    Keywords: e-commerce; m-commerce; u-commerce; principal component analysis; PCA; ANOVA; national productivity; India.
    DOI: 10.1504/IJPQM.2019.10019964
     
  • Measuring organisational performance using work measurement: towards improving productivity   Order a copy of this article
    by Barnes Sookdeo 
    Abstract: Improvements in quality and productivity based on work measurement can be achieved by means of a simple, consistent measurement system in spite of the ever-increasing importance of performance measurement to monitor outputs and improve productivity, few large-scale empirical studies concern models, characteristics and indicators of performance measurement systems (PMS). The objective of this article is to demonstrate the necessity for a PMS to ensure that performance is measured, and operations and employees are managed. The research design of the study consisted of a mixed-methods approach. The output of this article is a PMS designed and based on the work measurement technique. The results indicate that if organisations do not have measurement systems, they will not be able to measure their outputs and improve productivity. The empirical results indicate the essential need for the system. The implementation of this system will ensure that organisational performance is measured and productivity is enhanced.
    Keywords: work study; work measurement; performance measurement; time study; basic time; rest allowance; contingency allowance; rating; standard time.
    DOI: 10.1504/IJPQM.2019.10018654
     
  • Dealing with generalised inverse DEA models for input-output estimation   Order a copy of this article
    by Mojtaba Ghiyasi 
    Abstract: This article addresses the inverse DEA models to deal with such a question: if a DMU changes some of its input (output) levels among a group of DMUs, to what extent should the unit change outputs (inputs) such that its efficiency score remains unchanged? The article unfolds some problematic aspect of inverse DEA model with saying that inverse DEA models do not work in some situations which should be considered on process of input or output estimation. This is done by proposing a numerical example and mathematical ratiocination. Additional arguments and theorems are provided to overcome to the current drawbacks. This article revises and improves the existing literature. Proposed models are illustrated using numerical examples.
    Keywords: input-output estimation; inverse problem; data envelopment analysis; DEA; multiple objectives linear programming; MOLP.
    DOI: 10.1504/IJPQM.2019.10017986
     
  • Optimisation of welding fixture layout for sheet metal components using DOE   Order a copy of this article
    by K.M. Arunraja, S. Selvakumar, P. Praveen 
    Abstract: Machining fixtures are used to locate the workpiece and constrain it during the machining operation. Fixture layout is the positioning of fixturing elements such as clamps and locators. The purpose of this work is to design an optimum fixture layout which reduces the maximum deformation of the sheet metal workpiece caused by clamping and welding forces. This can be achieved by selecting the optimal number of fixture elements with optimum locations. Other than 3-2-1, N-2-1 locating principle is demonstrated with sheet metal workpiece. The deformation of the workpiece is found by ANSYS. The fixture layout optimisation is carried out using response surface methodology and Taguchi methods. Then results of RSM and Taguchi method are compared for optimum layout with minimum deformation. Finally, the better locating scheme with optimum fixture layout is found for minimum deformation of the sheet metal workpiece.
    Keywords: fixture layout; optimisation; elastic deformation; Taguchi; sheet metal; response surface methodology; RSM.
    DOI: 10.1504/IJPQM.2019.10024848