Abstract
After Web service is applied for the Internet, the Web not only becomes the plat of transferring data, but information communication tools. Geospatial information services will provide the data and function services to handle with basic geo-tasks, user and software agent should be discover, invoke, compose and monitor geospatial resources offering particular services and having particular properties. So the Web Ontology Language for Services (OWL-S) is imported to express the process ontology and process control ontology. In virtue of the Web services semantic markup, we can develop the agents to support the automatic reasoning and fulfil the composition of Web services and inter-operation. In this paper, the OWL-S services model and the upper ontology are analyzed. On the basic of standards of W3C and Open Geospatial Consortium (OGC), the author presents the framework of the geospatial semantic services that contains the semantic markup for Web services, user's restrictions, Web agent process and so on. At last, the geospatial semantic search service is discussed in detail.
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