50. 质量屋 (HOQ) : QFD 在六西格玛设计(产品设计)中的应用 How How How What What 产品设计考虑进所有顾客的关键质量特性 House of Quality # 1 Customer CTQs Customer Requirements Functional Requirements House of Quality # 2 Product Design CTQs Functional Requirements Product Design Characteristics House of Quality # 3 Process Design CTQs Product Design Characteristics Mfg. Process Characteristics What
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Editor's Notes
What are the basic tools of QFD? The basic tools of QFD are Project Roadmaps, Documents, Lists and Matrices. A Project Roadmap defines the flow of data through a QFD project. Documents record background information for a project. A Matrix is simply a format for showing the relationships between two or more Lists. Lists form the input rows and output columns of the Matrices. Examples of Lists include: User Benefits, Measures, Basic Expectations, Functions, and Alternative Concepts. Lists generally have other Related Data associated with them. For example, the priorities and perceived performance ratings resulting from Market Research would be associated with the List of Benefits. Importance values would also be associated with Measures and Functions. Matrices are used to relate two or more Lists to each other, thus deploying or transferring the importance from the input lists to the output lists. For example, a common Matrix relates Measures to User Benefits. Another Matrix could be used to relate Measures to both User Benefits and Basic Expectations. Matrices are a flexible tool which can be configured to the particular needs of each project.
The Four-Phase approach uses a QFD Matrix to translate Customer Wants into Product Characteristics. The Product Characteristics are then translated through another QFD Matrix into Part Characteristics. Part Characteristics are translated into Process Characteristics. Finally, Process Characteristics are translated into Production Controls. There are many other approaches. In fact, the flavor of QFD is often what differentiates one consultant from another. However, almost everyone agrees that for QFD to be successfully implemented within an organization, it must be adapted to the particular situation surrounding its use.