The Validation and Verification of WSCDL

This paper presents an approach to validation and verification of the WSCDL specification. In order to validate whether the CDL document is well defined or not, we introduce OCL to precisely describe the constraints which was expressed by natural language, and design a simple validator to check the static properties of the CDL document. The validator is created based on a Java model and the Java model is generated according to the UML diagrams with OCL constraints which is used to describe CDL specification. To verify the dynamic properties of CDL document, we model the behavior of CDL document with Java, so that Java Pathfinder model checker can be applied to check the desired properties. The assert activity is introduced to the CDL specification for describing the logic properties, to facilitate the verification process. A case study is given and it shows that our approach is both effective and practical. Moreover, this approach can check almost every kinds of CDL document, even the documents including exception block or finalize block.