Forthcoming articles


International Journal of Product Development


These articles have been peer-reviewed and accepted for publication in IJPD, but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.


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International Journal of Product Development (2 papers in press)


Regular Issues


  • The House of Concepts as a matrix-based problem-solving method in conceptual design   Order a copy of this article
    by Stefan Punz, Peter Hehenberger 
    Abstract: As most of the key properties of a product are determined by its design concept, customer orientation must be ensured very early in the conceptual design phase. Hierarchical concept development can help to reduce the complexity of this strategically significant task. This paper examines the process of hierarchical concept design by means of the House of Concepts (HoC) approach, which was conceived specifically to support customer-oriented concept development. This approach, which builds upon Quality Function Deployment (QFD), is compact, illustrative, enhances comprehensibility and can be considered both a method and a guiding principle. Supporting the creation of solution concepts by analysing the dependencies between requirements, functions, structure and properties with matrix-based methods allows verifying the suitable product concepts. The HoC method promotes customer orientation, especially during conceptual design, and supports systematic concept development at different levels of abstraction. Thus, it enables step-by-step development of product concepts and helps to reduce the complexity of this important engineering task. The HoC approach can be used to ensure customer orientation in the development of product concepts, which leads to an increase in effectiveness in product development.
    Keywords: House of Concepts (HoC), Quality Function Deployment (QFD), Customer-oriented concept development, Early design phases
  • Fuzzy front end activities in new product development process: A comparative study of Japanese and Korean projects   Order a copy of this article
    by Ruslan Mammetseyidov, Akio Nagahira 
    Abstract: The aim of this study was to reveal both direct and indirect impacts of fuzzy front end activities in Japanese and Korean manufacturing firms during corresponding successful periods of each country. The analysis of 540 Japanese and 293 Korean new product development projects was carried out using structural equation modeling. The results suggest that Korean firms tended to keep more close attention on reduction of market uncertainty activities compared to Japanese firms. In addition, initial planning activities are strongly significant in minimizing changes that could lead to revision of a whole project, but not on minimizing changes that are necessary to adapt to requirements determined by dynamic business environmental changes.
    Keywords: new product development (NPD); fuzzy front end (FFE); Japanese firms; Korean firms; structural equation modeling (SEM); Smart PLS; project execution phase.