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International Journal of Product Development

 

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International Journal of Product Development (10 papers in press)

 

Regular Issues

 

  • Defining 'Functional Products' through their constituents   Order a copy of this article
    by John Lindström, Daria Sas, Håkan Lideskog, Magnus Löfstrand, Lennart Karlsson 
    Abstract: Based on empirical studies combined with a literature review, the paper proposes a comprehensive framework defining Functional Products (FP) through their constituents. The framework adds additional specificity to the literature by identifying and discussing existing and emerging constituents of FP, shedding further light on what is needed to create a long and trustful win-win situation between providers and customers in an FP context.
    Keywords: constituents; definition; functional products; IPS²; industrial product-service systems; PSS; product-service systems; win-win situation.
     
  • Managing uncertainty, complexity, and dispersion in product development projects   Order a copy of this article
    by Glenn Johansson, Kristina Säfsten 
    Abstract: This paper reports findings from the application of a new method, denoted the Interface Management Method (IMM), for managing uncertainty, complexity, and dispersion in product development projects. The method was applied in three commercial projects and evaluated against desired features of product development methods reported in literature. The findings indicate the potential of the method to support product development teams when facing challenges related to uncertainty, complexity, and dispersion as it helps to create focus and a dialogue on how to deal with the challenges. The paper also adds to the discourse regarding product development methods by discussing and defining four interrelated concepts: method, tool, procedure, and system. Through more precise definitions, the dialogue between academics and practitioners can be refined and lead to better methods, which will ultimately result in improved product development efficiency and effectiveness.
    Keywords: product development; uncertainty; complexity; dispersion; method; tool; work procedure; system; case study
     
  • Modular Product Optimization to Alleviate Poverty: An Irrigation Pump Case Study   Order a copy of this article
    by Patrick Lewis, Christopher Mattson, Charles Wood 
    Abstract: One potential, high-impact area for modular products is the design of income-generating products for poverty alleviation. Income-generating products have helped millions of people sustainably escape poverty. However, millions of other impoverished people are unwilling to invest in these relatively costly products. Modular products have the potential to reduce/overcome this barrier by enabling a product to incrementally adapt to changes in income potential. In previous work by the authors, an optimization-based modular product design method was developed. Implementation of this method in the creation of a modular irrigation pump is presented herein. The purpose of this study is to physically validate the ability of the method to identify progressively affordable modular products by comparing the performance of the theoretical and physical prototype of the pump. Based on observations from this comparison, the authors conclude that the method is a feasible approach to engineering-based poverty alleviation.
    Keywords: pareto traversing, modular product design; multiobjective optimization, engineering-based poverty alleviation
     
  • An approach to integrate numerical simulation within KBE applications   Order a copy of this article
    by Giorgio Colombo, Caterina Rizzi, Daniele Regazzoni, Roberto Morotti 
    Abstract: This paper presents an approach to automate and integrate numerical simulations within Knowledge-Based Engineering applications to improve the use of simulation tools, especially in SMEs. Main discussed issues concern: i) the importance of the CAD model as an input of the process; ii) data migration from CAD to CAE tools; iii) model characterization; iv) effects of parameters variations; v) simulation steps; and, vi) results evaluation. In addition, formalization and representation of rules and procedures to automate the design process, in particular the simulation tasks, are presented. Two case studies are described to explain and verify the approach. The first case concerns the design process of centrifugal industrial fans, during which simulation tools are used to verify the correct sizing of impeller blades. The second one is related to a non-industrial process; actually, it regards a medical device, and more precisely lower limb prosthesis. Finally, main results are discussed.
    Keywords: Knowledge-based Engineering, Embedded simulations, Simulation rules, Industrial fan, socket design.
     
  • Using the parallel output DEA cooperative model to evaluate Thai dried longan exporting supply chain
    by Danaitun Pongpatcharatorntep, Nan Liu 
     
  • IT-enabled Product Innovation: Customer Motivation for Participating in Virtual Idea Communities   Order a copy of this article
    by Ulrich Bretschneider, Jan Marco Leimeister, Lars Mathiassen 
    Abstract: Virtual idea communities (VICs) such as Dells Ideastorm are very popular in practice. In VICs, customers of firms can submit ideas and collaborate to support product innovation. This customer-based ideation is not new per se. Small groups of customers have been brought together in lead user workshops or focus groups since the 80s to support product innovation. However, bringing customers together in VICs represents a new form of IT-mediated ideation with customers. While extant research has provided insights into customers motives for participating in traditional ideation, we know little about the motivations that drive customer participation in this new form of IT-enabled ideation. Based on a survey of customer motivations for participation, we found evidence for motives that arise directly due to the VICs IT-ability to support visualization of customer ideas, to give feedback on ideas, and to support customers social interactions. As a result, VICs are perceived as a way to demonstrate personal capabilities, for getting recognition, and for facilitating social interaction. We discuss these findings in relation to extant research on customer-based ideation.
    Keywords: Virtual Idea Community, Open Innovation, Crowdsourcing, Motivation, Ideation, New Product Development, Customer Involvement, Idea Management System
     
  • Investigating a totally digital approach to concept generation during industrial design practice
    by Mark Evans, David Cheshire, Eujin Pei, Ian Graham 
    Abstract: During the professional practice of industrial design, digital methods are used extensively to support the generation, development and specification of creative three dimensional (3D) form. Despite the increasing capabilities of digital methods, the distinctive nuances of current practice continue to require the use of non-digital methods, particularly during the highly creative concept generation activities. This paper reports on a research project that combined emerging and established digital design technologies to define an approach for total ‘Digital Industrial Design’ (DID) that employed only digital methods (e.g. no pens/paper) with no post-process finishing (e.g. smoothing/painting of rapid prototype parts). To evaluate this theoretical approach, action research was employed in which all phases of DID were used to design two stylistic variations of a consumer product with data collection using a diary through the design process and coded analysis of outcomes. The paper concludes that DID has the greatest potential for change and benefit during the concept generation phase, where haptic feedback modelling and monochrome 3D printing have the capacity to replicate some of the qualities of tactile form-giving that is associated with workshop-based sketch modelling by hand. When integrated with photorealistic visualisation, low fidelity appearance models have the potential to reduce design timescales. To maximise impact, the case study was translated into in a web-based resource (http://www.lboro.ac.uk/microsites/lds/did/) to facilitate understanding of the process and designed outcomes from DID.
    Keywords: industrial design, product design, digital design, computer aided design, action research, sketching
     

Special Issue on: "

Special issue on "Semantic Web Usage in Collaborative Product Design and Development,"

  • AUTOMATIC ONTOLOGY GENERATION FROM PATENTS USING A PREBUILT LIBRARY, WORDNET, AND A CLASS-BASED N-GRAM MODEL   Order a copy of this article
    by Zhen Li, Derrick Tate 
    Abstract: An ontology is definedas a structured, hierarchical way for describing domain knowledge. Research work regarding ontological engineering has yielded fruitful results, but these methods share a common drawbackthey require significant manual work to generate an ontology,which limits the usefulness of these approachesin practice. In this paper, we propose a computational model that combines data-mining, natural language processing (NLP), WordNet, and a novel class-based n-gram model for automatic ontology discovery and recognition from existing patent documents. A pre-built ontology library was constructed by gathering knowledge from engineering textbooks and dictionaries.Then a dataset of engineering patent claims was split into training (80%) and validation (20%)subsets. The pre-built library and WordNet were used to generate class labels for constructing class-based n-gram models in a training process.The holdout validation dataset validated the accuracy of the proposed method. The results showed that the average accuracy was 87.26% for all validation samples. The best performance was 89.26% for hybrid vehicle patents, and the worst performance was 85.15% for patents related tocomposite image projectors.
    Keywords: ontological engineering, n-gram language model, natural languagernprocessing
     
  • Supporting Decisional Processes in Design: a case study in the Space Industry   Order a copy of this article
    by Francesca Montagna 
    Abstract: The approach proposed in the paper considers a decision perspective on New Product Development (NPD) together with the integration of different domains and tools to support design activities. In particular, it highlights the need for methods and tools that investigate and support the design decision context, improve communication and reduce uncertainty in engineering design situations. The proposed approach has been implemented in a French-Italian space industry company.
    Keywords: Design decisions, Engineering management, Decision-Aiding tools.
     

Special Issue on: "

Special issue on "Advances in the Design Structure Matrix and Its Applications in Complex System Design and Development,"

  • Scalable product platform design based-on design structure matrix and axiomatic design   Order a copy of this article
    by Xianfu Cheng, Guangying Lan, Qihang Zhu 
    Abstract: Product platform design has been recognized as an effective means to establish and preserve competitive status in the market and to maintain the economies of scale and scope, while keeping production costs to a minimum. To this end, a new design method for scalable product platform is presented based on design structure matrix and axiomatic design. Initially in this process, the customer needs are analyzed, and then the common and individual needs are identified. Second, the key functional requirement parameters are extracted and mapped. Next, a design matrix is established. The functional structure decomposition figure and the design matrix are combined for constructing a design structure matrix. Then, an extension clustering algorithm is utilized to cluster the elements, and then common variants and adjustable variants of product platform are recognized reasonable. Afterwards, a product platform design scheme based on a design structure matrix and axiomatic design is determined. Finally, a product platform on electro-hydraulic drum brakes is developed. The results demonstrate the effectiveness and practical value of the new design method.
    Keywords: Product platform; Design structure matrix; Axiomatic design; Electro-hydraulic drum brakes