This paper presents a high level Petri-Net approach for specifying and verifying views over composite Web service. High level Petri-Nets have the capacity of formally modelling and verifying complex systems. A view is mainly used for tracking purposes as it permits representing a contextual snapshot of a composite Web service specification. The use of the proposed high level Petri-Net approach is illustrated with a running example that shows how Web services composition satisfies users' needs. A proof-of-concept of this approach is also presented in the paper.