Studies, Case-based Reasoning In Capp System

For shortening the preparation period of process, enhancing the compete ability of production in the market and promoting the utility of CAPP, this paper studies the key techniques of CBR in CAPP system, which aim at solving the problems of process design and current CAPP systems. According to an enterprise item, this paper develops a software prototype using the techniques of CBR.Firstly, this paper studies the expression and building of cases models. According to the requirements of process design of CBR, this paper, adopting characteristic techniques, builds a kind of model that can support CBR techniques.Secondly, this paper gives a searches process of cases. Considering techniques of part, this paper provide a likelihood decision rule based on characteristic and processes Direction .this rule enhances the veracity of case matching, improves the reuse of cases process.Lastly, this paper studies preliminarily modification of cases and realizes a prototype system.The author thinks that adopting CBR techniques to design process can resolve the "knowledge bottle-neck" problem.