Multi-layer Case-based Reasoning Approach of Complex Product System

Innovation of Complex product systems (CoPS) represents the trend of future technology development. CoPS are high cost, high technology, engineering intensive, multi-layer structure systems. As the most urgent problem in CoPS development is how to improve intelligence and knowledge systematically. Case-based reasoning (CBR) is a knowledge-based problem solving method. Aimed at the coarse-grained problem existed in single-layer case-based reasoning of the CoPS. Based on the characteristics of the multi-layer of CoPS, the domain knowledge and the similarity of components function are considered, the approach framework of multi-layer intelligent case-based reasoning is proposed. In the framework, the XML is used for description language of components replacement rules in order to realize the adjustment and modification of deep-layer details of the case. The improvement and application of the framework are feasible solutions for case-based reasoning of multi-layer CoPS. Finally, an illustrative example for conceptual design of complex product systems is given to clarify the feasibility and effectiveness of the multi-layer intelligent CBR approach framework.