The Case And Representation Of Case In CBID System

This thesis is part of the research subject of the National High-tech research development plan (863 plans) project, the research and application of case based industrial design technology and assistant design system. The research has the sustaining research since "九五", "十五" as a foundation, numerically-controlled machine tool as the object, analyses and demonstrates NCMT industrial design case, case frame, and the implement and application of case representation in CBID system.This thesis starts from modern design method and industrial design case, discusses industrial design case in CBR combining the characteristics of industrial design. And it lucubrate the effect and signification of design case to the solution of design questions, and supplies the theory gist to the concrete implement of CBID system in NCMT industrial design field.It discusses the important effect of case representation module in the system according to the concrete requirement of every module in CBID system. It uses the eigenvector cases representation method in its organizing means of case, and on this foundation, builds the representation frame model of case for the case's content and case's representation mode in CBID system.In the end, this thesis discusses the application of case representation module in CBID system from the point of view of the reuse of design and the interface flow of CBID system. And it brings forward the frame of the case reuse based on scenario driven, and discusses the concrete embodiment and implement method of it in CBID system.