International Journal of Business and Systems Research (30 papers in press)
COSTS FUNCTION ASSESSMENT : AN EMPIRICAL BUSINESS ANALYTICS APPROACH FOR DECISIONAL PURPOSES
by Antonio Focacci
Abstract: The aim of the present paper is, without any pretension of to be exhaustive, to propose a business
analytics contribution in the elaboration of a reliable and accurate assessment of firms costs function for decision purposes. As a matter of fact, the analyst/consultant, the entrepreneur itself or also the manager has not always the possibility to access to the wide range of all the needed useful informa
Keywords: Management accounting; Business analytics; Variable costs; Fixed costs; Statistical analysis.
An Application of Fuzzy VIKOR Method on Evaluation of the University Students Preferences on Selected Turkish Banks
by Tolga Genc, Mahmut Masca
Abstract: We proposed a Fuzzy Multiple Criteria Decision Making (MCDM) approach for the preferences of university students in Afyon Kocatepe University over the service quality of selected banks. This research first examined the literature and Service Quality (SERVQUAL) criteria for the banks. Then, we demonstrated the notation steps of Fuzzy VIKOR. A questionnaire consisting of linguistic variables was prepared and applied to almost 400 students and some experts to collect the preferences over service quality. We refrained from asking quantitative numbers in the questionnaire since it is difficult to assess the quality with concrete values.
This paper focused only on the applicability of Fuzzy MCDM methods over banking service quality. We do not aim to rank the banks and gave them advice though we aimed to show the applicability the methods with linguistic variables. The empirical study analyzed four banks and findings are shown in the conclusion section.
Keywords: Multi Criteria Decision Making; Fuzzy MCDM Approach; Customer Preferences; Fuzzy VIKOR.
New approach to select materials using MADM tools
by Morteza Yazdani
Abstract: Revolutionary attitude of researchers to invent and develop decision making support tools has been increased since years. Effective methods and models are created to fulfill experts, engineers and managers skill for better and distinct solution. This paper proposes two new multi-attribute decision making methods to indicate applicability and performance of them in area of design and material. Factor relationship (FARE) is introduced for first time in material evaluation field to elaborate weights of material criteria. This method resolves the problem of pairwise comparison judgment which naturally happens for decision makers and addresses more accurate rate of decision criteria. In order to assess materials and sort them according their performance and technical properties, weighted aggregated sum product assessment (WASPAS) method is acquired. The proposed approach is applied in hard magnetic material selection. In final part of the paper, some tests (e.g. using normalization tool and correlation coefficient) are handled to conform and validate obtained results.
Keywords: Multi attribute decision making - material selection - Factor RElationship - weighted aggregated sum product assessment - normalization tool.
Let Games Begin and Go on
by José António Filipe, Manuel Alberto M. Ferreira, Maria Cristina P. Matos
Abstract: Real life is a bigger game in which what a player does early on can affect what others choose to do later on. In particular we can strive to explain how cooperative behaviour can be established as a result of rational behaviour. When engaged in a repeated situation, players must consider not only their short-term gains but also their long-term payoffs. The general idea of repeated games is that players may be able to deter another player from exploiting his short-term advantage by threatening a punishment that reduces his long-term payoff. The aim of the paper that supports this abstract is to present and discuss dynamic game theory. There are three basic kinds of reasons, which are not mutually exclusive, to study what happens in repeated games. First, it provides a pleasant and a very interesting theory and it has the advantage of making us become more humble in our predictions. Second, many of the most interesting economic interactions repeated often can incorporate phenomena which we believe are important but which are not captured when we restrict our attention to static games. Finally, economics, and equilibrium based theories more generally, do best when analysing routinized interactions.rnrn
Keywords: Dynamic Games; Code Form Game; Repeated Game.
Innovation & Strategic marketing -the key factors: A literature review on Indian Micro Small Medium Enterprises
by Lohith C P, Srinivasan R, Rajeshwar S. Kadadevaramath, Shrisha S
Abstract: MSMEs (Micro Small Medium Enterprises) had a significant role in improving the economic growth of the Indian industrial sector. It has maintained consistent growth rate at 11.5 percent a year which is higher than the overall GDP growth rate over the years as compare to agricultural sector. Their contribution is significant with respect to manufacturing sector and also with reference to exports. Indian MSMSEs have started manufacturing very high technological products compared to the earlier scenario. In addition to the existing to manufacturing, it has also entered into the service domain. In spite of all these achievements, Indian MSMEs are facing various hurdles and as a result of this, it is not able to achieve the targeted growth and is also unable to cope up with the global competition. Hence Indian MSMEs need to adopt several strategic paths in order to meet todays and future competition. This paper presents the literature review of how Indian MSMEs can adopt strategic marketing and innovation for achieving the competitive advantage.
Keywords: Key words: MSME’s; Economic growth; Innovation; Strategic Marketing.
Connections between Personality traits and Work experiences
by Aleksander Zadel
Abstract: The present study examined the factors that are related to occupational burnout. Previous studies researching the emergence of burnout mostly focused on external factors at the level of the nature of work, the workplace and institutions. Very few of them paid attention to the aspects of the individual in the sense of the individual's personality traits and subjective feelings of satisfaction with work and with life. This is why this study researched the relationship between the burnout phenomenon, work satisfaction, personality traits and quality of life. To analyse personality traits the Emotions Profile Index (EPI) was used, which is based on Plutchik and Kellerman's Theory of Emotion. Results of the study contribute to the understanding of the role of personality in the context of work.
Keywords: Personality traits; Burnout; Quality of life; Work satisfaction.
Considerations for Avoiding Commoditisation in the Automotive Industry
Analysis of Factors that Enhance Customisation
by Hirotoshi Uehara, Aatsunoti Kobayashi, Keisuke Uenishi, Junji Ikeda, Hiroyuki Nagano, Shuichi Ishida
Abstract: The automotive industry has been achieving profits by creating new value through innovations while the Japanese consumer electronic industry has been suffering from low profitability due to commoditisation. To analyse the factors helping the automotive industry avoid commoditisation, this study focuses on optional parts sales as a means to provide new customer value. It conducts customer surveys to analyse customisation and the effectiveness of directly managed stores explanations of such value. The results suggest that customers favour customisation, and that directly managed store explanations encourage a performance-oriented customer mind-set, resulting in price increases. Thus, a mechanism is established in the automotive industry where the value created is explained to customers. This mechanism then contributes to price increases. From this there are implications on ways to avoid commoditisation: 1) create new customer value; 2) enhance customisation to provide new value; and 3) establish a value communication mechanism that encourages a performance-oriented mind-set.
Keywords: Avoiding commoditisation; Automotive industry; Value capture; Mass customisation; Directly managed stores.
Key Factors Impacting Information Quality: An Empirical Study of Thailands Healthcare Sector
by Intiraporn Mulasastra, Donyaprueth Krairit
Abstract: Quality of information produced by information systems is important to organizations, affecting all aspects of business from operations to strategic management. Few empirical studies have examined the factors influencing IQ using quantitative methods. By reviewing the extensive literature in the information systems (IS) and IQ research areas, this study developed an IQ determinant model and measurement instruments for empirically investigating factors that influence IQ at the organizational level. Our model consists of five IQ determinants: IQ control, IS support, system usefulness, IQ leadership, and IQ education and training. We conducted reliability and validity tests by using data collected from 345 public hospitals in Thailand. Hypotheses were tested using structural equation modeling. The results indicate that other than IS support and system usefulness, IQ control (IQ assessment, root causes analysis, and IQ improvement) impact IQ. Hence, Thai public hospitals should institutionalize IQ control similar to quality control in a manufacturing context.
Keywords: data quality; information management; information quality control; information quality determinant; hospital information system; success factors; management information system.
DEVELOPING A DISASTER RISK MANAGEMENT INDEX FOR LATINAMERICAN COUNTRIES
by Claudio Garuti, Carmen Castro, Juan Pablo Sarmiento
Abstract: This work aims to create a risk disaster management index to measure how government institutions are dealing with disasters beyond legal and normative regulations advancing toward enforcement and implementation. With the complexity of the disaster risk management concept and its scope in mind, the Analytic Hierarchy Process (AHP) methodology was used to create a comprehensive index capable of measuring disaster risk management at national and subnational levels. The index was checked for six Latin-American countries: Mexico, Nicaragua, Honduras, Colombia, Argentina, and Chile, obtaining representative results.
Keywords: Risk Disaster Management; AHP; Index of Measurement for Risks Disaster Management (RDMI).
Selecting Appropriate Operations Strategy Using Project Management Concepts: An Economic Analysis Approach
by Mohaddeseh Yaghtin, Mehdi Abbasi
Abstract: Having an effective operations strategy (OS) is a key element in protecting competitive capabilities of any company. OS supports the business strategy and should be accurately selected in a way that the organization can be positioned among the competitors. The main objective of this study is to provide valuable insights for project managers to select the most appropriate OS for their enterprise using economic analysis approach. We propose a seven-step algorithm which makes the decision-makers able to make an optimum decision for organizations OS selection on the basis of economic analysis of OS alternatives. This is the first study which presents such an OS selection framework and incorporates project management and OS contents. First we consider each OS alternative as a program (a group of projects) and define some group of projects for actions required in intersections of OS matrix related to each program. Then, by determining the dependencies among the projects of each program as well as providing some information about the projects, we can estimate cash flows of programs. Thus, we can financially evaluate the programs and select the most profitable and appropriate OS. The presented algorithm assists the managers to apply the most financially effective OS for their company. The validity of the algorithm is demonstrated through conducting a case study.
Keywords: Operations strategy; Project; Program; Project management; Financial performance; Economic analysis methods; Selection; Operations strategy matrix.
Measuring Efficiency in US Teaching Hospitals Associated with Quality Variables
by Jeong Hoon Choi, Dong-hyun Oh
Abstract: This research compares the efficiency of US teaching and non-teaching hospitals as estimated by using Data Envelopment Analysis. Labour costs, capital costs and other operating expenses are employed as input variables. The research models are divided into two main cases based on different sets of outputs. In both cases, teaching hospitals show higher efficiency scores than non-teaching hospitals. For-profit hospitals show higher efficiency scores than not-for-profit or governmental hospitals. With regard to the size, larger hospitals are associated with higher efficiency scores. Regional variations are detected, but they seem to fade in comparing some regions. This paper addresses the economically important question of what explains heterogeneity in production functions across hospitals by measuring the efficiency of hospitals, including quality variables. The inclusion of quality metrics in efficiency estimates represents an improvement over similar existing studies, since patient outcomes are key to considering welfare implications in the healthcare sector.
Keywords: Data envelopment analysis (DEA); hospital efficiency; quality indicators; healthcare industry.
The live sheep export supply chain: When operational and societal complexities collide
by Elizabeth Jackson, David Adamson
Abstract: This paper takes a supply chain perspective on the business systems involved in the trade of live sheep from Australia to the Middle East. Live export supply chains are complex as they must encompass efficiency, maintenance of quality and adhere to international animal welfare protocols. This paper explores the consequences resulting from business systems failure, based on a case study from 2012 when protocols in the international trade of live sheep were compromised. Key themes to emerge from the case study relate to supply chain control and resilience, the moral obligations of governments to manage societal exposure to unsafe food and the management of unscrupulous operators in the food supply chain. The originality of this work lies in its consideration of live cargo and the challenges of unforeseen circumstances in managing the physical distribution of live animals transported by sea.
Keywords: resilient supply chains; food safety; business communications.
Competitive strategy of family businesses through CSV - case study of a family business in Mie Prefecture, Japan
by Keiko Nishioka, Kiminori Gemba
Abstract: Many companies around the world, are family businesses and are the main drivers of the economy. For any revitalization of local communities, the innovation of regional companies is indispensable and if such innovation is realized through regional partnerships, it will become the best possible scenario by which both the society and businesses will prosper. Michael E. Porter has proposed the concept of CSV (creating shared value) and pointed out the importance of sharing values with the regional community. This paper proposes a hypothesis in which CSV, which is important for business management, can also become a source of competitive advantage for companies and analyzes the strategic management of a family business in Mie prefecture. Through detailed case studies, the paper demonstrates that CSV can become an effective competitive strategy for family business and also clarifies conditions for CSV to generate sources of competitive advantage.
Keywords: family business; CSV; competitive advantage; competitive strategy; regional society and businesses; regional contribution; open innovation and collaboration.
A systematic literature review on technology transfer from university to industry
by Ximena Lopez-Mendoza, David Mauricio
Abstract: Technology transfer is considered as a continuous process characterised by the transmission of knowledge generated by the university, government agencies, and any institution capable of generating knowledge to an enterprise that allows it to innovate and expand its technological capabilities to get a competitive advantage in the marketplace. This paper aims to know the current status of the latest research related to the technology transfer from university to industry, for it has been made a systematic review of the literature proposed by various authors in order to answer the following research question: What are the agents, mechanisms, stages, models, and factors in the technology transfer? It has identified fifteen models, fifteen mechanisms, three agents, thirty positive and twenty one negative factors which influence the transfer process, and it concludes that universities have developed technology transfer models but these are based to different realities and contexts of each region.
Keywords: technology transfer; transfer models; transfer factors; transfer mechanisms; industry-university.
Linking CRM to Customer-Oriented Behavior through Service Climate Perceptions
by Mei-Ling Wang
Abstract: Integrating the capability view of customer relationship management (CRM) with service climate research, this present study developed a conceptual two-level model that links CRM to customer-oriented behavior through service climate in service organizations. Data from 629 customers involving 141 bank consultants of retail banks in Taiwan was collected via a questionnaire and analyzed using hierarchical linear modeling. The results revealed that CRM was related to service climate perceptions, which, in turn, positively predicted customer-oriented behavior. In addition, the relationship between CRM and customer-oriented behavior was mediated by service climate perceptions. Both theoretical and practical implications are discussed as well as future research directions.
Keywords: Customer relationship management; Service climate perception; Customer-oriented behavior.
A Systems Model of Using the Deliberate Leadership
by Gayle Peterson, Robert M. Yawson, John Sherman, Ivy Johnson-Kanda
Abstract: This study is predicated on the premise that addressing wicked problems through business practices and social innovations will need new leadership and organizational development strategies for helping organizations mirror practices and approaches internally with staff and externally with stakeholders. The Deliberate Leadership
Keywords: Adaptive Challenges; Complexity Theory; Deliberate Leadership; Social Change; Systems Model; Wicked Problems.
Innovation in Practice: The NIT-Mantiqueiras Cluster Case
by Frederic Andres
Abstract: The paper discusses the application of a management model based on best practices related to scientific, technological and innovation-oriented collaborative issues among institutions and companies, focusing on human capital management and structural capital management. These two kinds of capital are extracted from the organization value model. It is worth noting that they allow defining all legal and intellectual portfolios, and technological assets, which are required for innovation support, and, therefore to making run the NITs.
Keywords: Innovation system; regional clusters; intellectual property; legal services.
Customer participation in business ecosystems: An integrated approach of system dynamics and fuzzy sets
by Azizbek Marakhimov, Jaehun Joo, Jaegeol Yim
Abstract: Today, customers are not only consuming products and services but also actively participating in creating value. However, there is little research on customer participation in business ecosystems. As such, effects of customer participation in business ecosystems remain under-researched. The purpose of this study is to measure the effects of customer participation on business ecosystem health. This study analyzes the effects of customer participation by proposing an experimental framework that combines system dynamics modeling and fuzzy sets. The study identifies and simulates four types of business ecosystems (open customer-intensive, modest, partner-collaborated, and vertically controlled). The simulation results suggest that customer participation positively influences business ecosystem leaders (keystone) financial performance, innovation capability, and the business ecosystems health. The simulation results show that (a) customer participation in production in operations, design, delivery, and sales positively influences a keystones revenue and business ecosystem health, and (b) customer participation in promotion and idea generation increases a keystones innovation capability. Furthermore, the results show that the effect of customer participation varies across the four types of business ecosystems. This study offers important theoretical and practical implications on four types of business ecosystems. They help practitioners develop better strategies to involve customers into co-creation and enhance the health of the business ecosystem.
Keywords: Business ecosystems; Business ecosystem health; Customer participation; Co-creation; Sustainability; System dynamics; Fuzzy logic.
Selection of a Faculty Member in Academia: a Case for Verbal Decision Analysis
by Helen M. Moshkovich, Alexander Mechitov
Abstract: Personnel selection problem is often viewed as a multi criteria problem and there are many examples when different multi criteria techniques support the process. The multi criteria approach was used in several studies of faculty selection in academia but not many recognized that there were peculiarities in the selection process. Most studies concentrated on rank ordering of a small number of finalists while one of the main tasks of the search committee in academia is to select a smaller number of candidates from a possibly large pool of applicants for a more thorough review. In our paper we propose a three-step approach to the problem and recommend Verbal Decision Analysis (VDA) as a tool. Using a VDA method provides a reliable preference elicitation process and the decision rules are easy to understand and explain. Free tool ORCON_Z helps with the practical application. The proposed procedure was well received by the participants and provided valuable information during the selection process.
Keywords: Multi Criteria Decision Making (MCDA); Verbal Decision Analysis (VDA); ZAPROS; ORCON_Z; faculty selection; personnel selection.
Importance-Performance Analysis of Service Quality Dimensions for the Bangladeshi Hotel Industry
by Mahbubar Rahman, Rafikul Islam
Abstract: In global competitive markets, hoteliers are looking to satisfy guests for repeat customers. Achieving satisfied guests is not an easy task. This study evaluates the service quality of Bangladeshi hotels using gap analysis, SERVQUAL and importance-performance analysis (IPA). The results showed that hotel guests satisfaction regarding service attributes are lower than the importance assigned to the measurement attributes. The widest gap was found in staff response and additional amenities, especially the commitment of hotel staff towards their guests. Also, the IPA grid showed that eight services attributes fell into the concentrate here quadrant. This means that hotel management should take immediate action on these attributes for the betterment of the industry.
Keywords: service quality; gap analysis; SERVQUAL; importance-performance analysis (IPA); IPA grid; hotel industry; Bangladesh.
The value of inventory and the direction of the supply chain bullwhip effect
by Sima Fortsch
Abstract: The bullwhip effect (BWE) is the amplification of demand variability in a supply chain. The traditional view has this effect move horizontally upstream through the supply chain, while the reverse view has this effect move downstream (e.g., from manufacturing toward retail). The bullwhip effect can be quite costly for industry and society as a whole; hence, many researchers have been motivated to study causes of the bullwhip effect to manage, reduce, or eliminate it. This study is an empirical investigation of the supply chain bullwhip effect in which a three-stage supply chain is examined using monthly industry-level data from the U.S. Census Bureau (from 1992 through 2011). Of specific interest is the direction of the bullwhip effect and whether the effect is influenced by the value of inventory and inventory to sales ratios. Two sets of time series regression equations are used to detect the bullwhip effect and its direction in the supply chain. Empirical evidence is found suggesting the bullwhip effect of the supply chain member is influenced by the BWE of the other members, as well as the values of inventory and inventory to sales ratios of own member and other members of supply chain. In addition, there is evidence that the direction of the bullwhip effect is not influenced by the members horizontal positions in the network. It is also shown that the wholesale bullwhip effect exhibits heteroscedastic and nonstationary behavior; thus, making it difficult to predict the BWE of this member over a long-horizon time period. For the manufacturing and retail industries, however, BWE could be predicted.
Keywords: inventory; bullwhip effect; reverse bullwhip effect; econometrics; regression; time series.
Developing Models of DOE and Simulation to Maximize output of Tomato Concentrated Pulp processing Unit
by C.S. Chethan Kumar, N.V.R.Naidu Naidu, Rajeshwar S. Kadadevaramath
Abstract: In developing country like India agriculture is the main stay of the economy. Agricultural industries and related activities can account for a considerable proportion of their output. Due to insufficient demand, weak infrastructure, poor transportation and perishable nature of the crops, the grower sustains substantial losses. Even established fruit and vegetable canning factories or small/medium scale processing centers suffer huge loss due to erratic supplies. The main objective of fruit and vegetable processing is to supply wholesome, safe, nutritious and acceptable food to consumers throughout the year. Fruit and vegetable processing projects also aim to replace imported products like squash, jams, tomato sauces, pickles, etc., besides earning foreign exchange by exporting finished or semi-processed products. For example, a particular variety of fruit which may be excellent to eat fresh is not necessarily good for processing. Processing requires frequent handling, high temperature and pressure. Many of the ordinary varieties of tomatoes, for instance, are not suitable for making paste or other processed products. Simulation was carried out for the updated model for a period of ten days with five replications. From the results obtained from the DOE, noises in the factors (Steam losses, Minor stoppages) were reduced by implementing the mentioned techniques. The runs are randomized using MINITAB software. A cost matrix was made to create a tradeoff between all factors that were affecting the performance. This resulted in the increase of throughput rate in the real scenario. This research project demonstrates the practical application of Design of Experiments(DOE) showing how it can bring real breakthroughs in productivity of fruit(Tomato) processing industry. This research work was carried out with the objective of designing new decision making method for controlling the production and material flow in the process industry
Keywords: Process industry; Simulation Model; Runs; Steam Losses; DOE; Minor stoppages.
Integrated Model of Teamwork for Team Effectiveness Analysis: An Empirical Study
by Brian J. Galli, Mohamad Amin Kaviani
Abstract: This paper utilizes an empirically validated team model to evaluate a real organizations team effectiveness and efficiency issues. It provides recommendations to improve these deficiencies. The Integrated Model of Teamwork (IMT) is used to evaluate performance effectiveness of a Navy Missile Requirements Engineering (NMRE) team in US. While the team performs at a satisfactory level, they face obstacles involving structure, member knowledge, skills, and abilities (KSAs); communication; conflict resolution; coordination and collaboration; member motivation; member training; team cohesion and potency; and team learning. Finally, the IMT model led to recommendation development. An implementation plan was developed for the organizational level. The NMRE team should utilize it to resolve key problems identified in the team.
Keywords: Team Effectiveness; Integrated Model of Teamwork; Team Dynamics; Leadership; Military Application.
WHAT ARE E-COMMERCE POSSIBLE CHALLENGES IN DEVELOPING COUNTRIES: A CASE STUDY OF NIGERIA
by Habib Ullah Khan, STELLAMARIS UWEMI
Abstract: The overarching goal to achieve the vision of Nigeria (NV2020) cannot be realized without the synchronized effort of all the sectors. To help the country and policy makers to identify the hurdles in attaining these lofty goals, the present work tried to bring the views of customers and operators of e-commerce into limelight. The study is primary data based and the data is collected using a questionnaire that is drafted separately for both the parties, operators and customers of Nigeria. Because of the limitations, the study could collect the data from ten operators and 200 customers and advanced statistical techniques are exercised. The data collected from the customers revealed that though they are interested in e-commerce operations (like online trading), majority are unable to complete the tasks successfully. This is because of the bottlenecks being encountered with respect to various sectors. In addition, the correlation analysis proved that the challenges of e-commerce have majority bearing on the economy of the country. On the whole, the study not only provided inputs to the policy makers, but also explained the operators of e-commerce about the capabilities, requirements and problems of the customers in performing successful e-commerce transactions.
Keywords: NV2020; e-commerce Challenges; operators; economic development; Nigeria.
An end-to-end system to enhance business process performance through new outsourcing to the Cloud strategies
by Mouna Rekik, Khouloud Boukadi, Hanêne Ben Abdallah
Abstract: This paper proposes an end-to-end system entitled Business Process Outsourcing for Performance Enhancement (BPO4PE). It presents a deep analysis and research of the BPO to the Cloud life-cycle starting from the identification of the business process outsourcing criteria with until the selection of business process activities to be outsourced as well as the most suitable Infrastructure as a Service (IaaS) offering to support their execution. We evaluate the system through different experiments that prove its good performance.
Keywords: BPO; Cloud; NSGA II; BPMN2.0.
Exploring the Role of Human Resource Practices in Organizational Empowerment in Developing Countries: Evidence from Power Industry in Iran
by Hossein Mansoori, Ali Shaemi Barzoki, Mohammad Hossein Moshref Javadi, Masoud Kianpour
Abstract: In human resource management (HRM) system, there are many factors that can affect the organizational empowerment. Human resource practices are some of these important factors, which were mainly studied at individual level and were rarely explored at the organizational level. Focusing on power industry in Iran, the current study sought to develop and test an organizational empowerment model based on human resource practices. A mixed methods approach was utilized, including a grounded theory study that was followed by a quantitative phase. The qualitative phase was conducted to develop an organizational empowerment model based on human resource practices.The hypotheses developed in the qualitative phase were tested through quantitative phase, including structural equation modeling.The results revealed that views and attitudes towards human resources as causal factors had significant effects on human resource practices; and human resource practices, contextual factors, as well as intervening variables had significant impacts on organizational empowerment strategies.
Keywords: Human Resource Systems; Human Resource Practices; Organizational Empowerment; Intraorganizational Empowerment; Interorganizational Empowerment; Extraorganizational Empowerment; A mixed-method approach,Grounded Theory; Structural Equation Model.
Towards the Verification of Cyber-Physical Processes based on Time and Physical Properties
by Imen Graja, Slim Kallel, Nawal Guermouche, Ahmed Hadj Kacem
Abstract: Cyber-physical systems (CPS) enable the development of complex real-world applications through the integration of computing and non-computing elements. At-design time, a cyber-physical process is a set of cyber and physical activities performed to accomplish a common goal in a given amount of time. The collaboration between the cyber-physical processes, through exchanging messages and objects, describes the behavior of networked cyber-physical systems (NCPS). CPS have time-related and physical properties, which are crucial to the correctness of their execution. However, when we specify the collaboration between multiple processes, some combination of their corresponding properties can be conflicting. This conflict renders the participating cyber-physical processes incompatible. We observe two types of problems: implicit time-related, and physical-related incompatibilities. In this paper, we propose a novel approach to verify the compatibility of collaborative cyber-physical processes with time-related and physical properties. In order to accomplish our verification, we first define a set of constraints that specify the structural, time-related, physical and synchronization properties. Next, based on the defined constraints, we automatically transform the NCPS model into a constraint satisfaction model. Finally, we analyze the generated constraint satisfaction model to check its consistency. We demonstrate the applicability of our approach through a case study and discuss its effectiveness in modeling and verifying the cyber-physical processes.
Keywords: Cyber-physical systems; Time-related Properties; Physical Properties; Collaborative behavior; Constraint Satisfaction Problem; BPMN; Compatibility of processes.
Prioritising Disclosures of Information in Analyst Reports using the Analytic Hierarchy Process: Evidence from Malaysia
by Hassanudin Mohd Thas Thaker, Azhar Mohamad
Abstract: This paper aims to document investor priority of information disclosed in analyst reports which has not been extensively researched in the context of Malaysia. For the purpose of analysis, this study uses primary data via a survey method. The data is analysed using a versatile multi-criteria decision-making approach, known as the Analytic Hierarchy Process (AHP). Findings reveal that investors place higher priority towards valuation in making an investment decision, followed by earnings summary, share performance, forecast revision, share information, financial indicators, segmental analysis, and scorecard in their use of the analyst report. The study is the first attempt to illustrate the priority of information disclosure in analyst reports given by investors when making an investment decision. Since this area of analyst recommendation is untapped in the context of Malaysia, the result of this study is expected to enrich the existing literature available in the field of analyst reports.
Keywords: Analyst report; Analytical Hierarchy Process; Malaysia.
A Mathematical Model for Measuring and Managing Macrosustainabilty
by John Wang, Ray Qing Cao, Vicky Ching Gu
Abstract: In order for the human race to continue to thrive in the long term, we have to learn how to manage our natural resources wisely. In order to manage something you must first be able to measure it. Macrosustainabilty is the key to finding solutions to megaproblems facing the Earth such as insufficient access to food, environmental degradation, declining natural resources, and deteriorating communities. This paper measures and manages global macrosustainabilty. An optimization model has been set based on the five categories.
Keywords: macrosustainabilty; megaproblems; economic sustainability; health sustainability; social sustainability; environmental sustainability; business ecosystemrn rn.
Special Issue on: AMMMT-2016 Recent Advances in Industrial Engineering and Management
A Fuzzy Optimization Approach for Software Reliability Estimation
by Boby John, Rajeshwar Kadadevaramath, Immanuel Edinbarough
Abstract: Many organizations today utilize information technology to gain competitive advantage. As a result, Information Technology industry has witnessed extraordinary growth. Many times the software companies compromise on software testing to avoid cost or schedule overrun. This might make the software unreliable. Hence it is imperative for the software firms to estimate the reliability of the software and ensure that their products are reliable. A wide range of models is available for reliability prediction. But there isn\'t a single model suitable for all software products. Hence it is necessary to identify the best-suited software reliability model for every software product. Unfortunately, the best fit model identification depends on the performance characteristics used for selecting the model. In this paper, the authors suggest a fuzzy optimization methodology to choose the best software reliability model based on multiple performance characteristics. Two case studies demonstrating the proposed methodology are also presented in the paper.
Keywords: non-homogeneous Poisson process; software reliability growth models; fuzzy optimization methodology; multiple response optimization.