Selecting Problem from Design Contradiction Set Found in QFD

Abstract:

To optimize the solution concept towards high value of customer satisfaction, the research on the combination of quality function deployment (QFD) and TRIZ (QFD/TRIZ) has been undertaken in the last decades. And TRIZ is introduced to eliminate the contradictions found in the QFD/TRIZ. However, solution concept is a unity of opposites. It is impossible to eliminate all contradictions. Therefore, it is significant to select and eliminate the contradictions which are mainly encumbrance for solution concept to get high value of customer satisfaction. Through this article, we proposed an approach to help designer analyze, rank and select the contradictions from contradiction set found in QFD. Contradiction model is identified to present the problem of TRIZ and link to QFD. Two computable ways are introduced to express the importance and extensive extent of a contradiction in the contradiction set. And the method to rank and select contradictions in the contradictions set is expatiated. Finally, a case is used to shown the validity of the proposed approach.

• Periodical: Applied Mechanics and Materials (Volume 151)
• Pages: 690-694
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.151.690
• Online since: January 2012
• Authors: Shang Liu, Dong Yan Shi
• Keywords: Customer Satisfaction, Innovation, Quality Function Deployment (QFD), TRIZ

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