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Proceedings of CAD'14, 2014, 141-143
Customer Needs Uncertainty Quantification from the Context of CAD/RP Systems

Ye Youzhi, A. M. M. Sharif Ullah, Kitami Institute of Technology

Abstract. One of the key challenges of CAD/RP systems is how to make these systems more customer-needs-oriented. A system called customer needs (CN) management system is needed to meet the challenge. The system should coordinate with CAD systems while creating the questionnaires for obtaining customer opinions. Based on the answers of the customers, the system should identify a preferred CAD model (or a set of CAD models). The system should also coordinate with the CAD/RP systems while creating the physical model(s) of the preferred model(s). Most of the times, the responses received are incomplete and difficult to comprehend. Therefore, uncertainty assessment becomes a key function of CN management system. At the same time, the questionnaire preparation should be meaningful from the viewpoints of both innovation and CAD/RP systems. Keeping all these in mind the authors have been conducting a set of studies for elucidating the nature of CN management system. Here, the authors describe some preliminary results obtained regarding the uncertainty assessment in CN management system. We propose a questionnaire preparation procedure based on the Theory of Inventive Problem Solving (TRIZ). The explanation is as follows. The main idea is to take advantage of 39 parameters, 40 principles, and contradiction matrix of TRIZ. For example, if we want to make a questionnaire on the theme called shape of an object, then it (i.e., shape (parameter 12 in TRIZ)) can be considered an improving or worsening feature.

Keywords. Product development, customer needs, uncertainty, CAD, RP

DOI: 10.14733/cadconfP.2014.141-143