Konferenzbeitrag
Publication and Discovery of Semantically Annotated Geospatial Web Services
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Datum
2012
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Shaker Verlag
Zusammenfassung
Environmental information and services have become a crucial asset in the creation of decission support systems.
Unfortunately, this information and services are not usually exposed in an interoperable and standard way, limiting
their reusability and impact in the community. Publishing and discovering geospatial information and services on the
Web is therefore an important challenge in order to create a breeding ground for collaboration and more sophisticated
environmental platforms. Based on common standards defined by the Open Geospatial Consortium (OGC) as the
starting point to ensure interoperability, we propose a discovery mechanism based on semantic annotations. OGC
service descriptions are annotated with SAWSDL and linked to concepts in domain ontologies, following a common
semantic service model. We seamlessly integrate the semantics in the standard OGC discovery infrastructure, extending the CSW service catalogues with semantic publication and discovery. Semantics queries can be created based on
formal languages like WSML, significantly improving the precission of discovery. In this paper we present our approach, which provides a semantic infrastructure for publication and discovery of environmentally enabled web services.