A breakthrough product R&D model by using the integration of four-phase QFDs and TRIZ

Abstract

This paper proposes a four-phase quality function deployment (QFD) involving TRIZ thinking strategy to enhance breakthrough capabilities for preventative and proactive design in product R&D process. Continuously developed ‘opportunities for breakthrough innovation’ are highlighted. In QFD1, identified customer needs are translated into technical specifications/design requirements. QFD2 is responsible for defining product structure, takes an initial DFA approach that provides a minimalist structure and drafts a rough schematic diagram that demonstrates visually the position of modules and their interactions. Optimal design parameters for the in-house made components are planned in the QFD3. QFD4 considers problems that may result from all manufacturing process parameters and then delivers recommendations for quality control and site supervision that reflect appropriately differing levels of stringency. Leveraging the introduction and execution of this four phase QFD, we can quickly and efficiently certify whether design changes or innovative product concepts meet customer specifications, target quality level and cost. In addition, this paper pinpoints the areas the TRIZ can be used to propose innovative methods for problem solving. As contradictory requirements appeared for the system, TRIZ methodology helps decrease negative effects and improves performance of existing design.