Title: Recent developments on integration of QFD, TRIZ and other quality and concept-design techniques: a case-study based review

Authors: Gustavo J. Molina; Anoop Desai

Addresses: Department of Mechanical Engineering, Georgia Southern University, Statesboro, Georgia, USA ' Department of Mechanical Engineering, Georgia Southern University, Statesboro, Georgia, USA

Abstract: This review focuses on the connection between the quality function deployment (QFD) specification contradictions and TRIZ principles. It has two main goals: to briefly present underlying principles of the reviewed methods and to provide references to useful examples of product design improvement. It compiles literature on QFD-TRIZ synergy, especially on applications to products, and on academia efforts to incorporate into its other design, quality, management, and sustainability tools. Because QFD does not solve the vague definition of multiple-customer requirements, ranking customer-need techniques were applied to it. This review shows that QFD-to-TRIZ integration led to successful product designs, and it can be effectively taught in engineering curricula and practice, because of its user-friendly structure. Further research is needed on linking QFD-TRIZ with other methods and design objectives, and with the 'full' QFD-four houses of quality.

Keywords: quality function deployment; QFD; TRIZ; product quality; concept design; design process; customer requirements; product engineering specifications; engineering specification contradictions; TRIZ contradiction matrix.

DOI: 10.1504/IJDE.2023.135588

International Journal of Design Engineering, 2023 Vol.12 No.2, pp.145 - 169

Received: 30 Dec 2022
Accepted: 22 Jul 2023
Published online: 18 Dec 2023 *

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