Abstract: Services description is essential in serviccoricnted computing (SOC). The major problem with most Web services description is a lack of information for using services. Based on environment ontology,a projection method was proposed that generates service description for a specific domain. The contents needed by this description approach and its consequence were illustrated. And then the description process was presented. This method can provide more precise description results and the knowledge of the service environment.

Key words: Project, Service description, Environment ontology