Abstract: For improving the performance and efficiency of component composition, and evaluating the port representalion and protocol definition, this paper proposed a hierarchical correlation-oriented evaluation model; it implements the evaluation of component composition by grey correlation grade of integrated evaluation. Firstly, this paper set up a guide line system including the performance and efficiency of component composition, the integrality, usability and consistency of port representation and protocol definition; secondly, designed a integrated grey correlation evaluation method to evaluate it, then analyzed the characteristic of component composition; finally, analyzed a component library of an E-commerce case. The results show that the method can satisfy application efficiently, and it is good for improving component composition efficiency.

Key words: Component composition, Grey correlation, Evaluation method