Metadata Community Profiles for the Semantic Web
Geoinformatica
Integrating Semantic and Syntactic Descriptions to Chain Geographic Services
IEEE Internet Computing
Semantics-based automatic composition of geospatial Web service chains
Computers & Geosciences
Scientific Programming
Knowledge representation in the semantic web for Earth and environmental terminology (SWEET)
Computers & Geosciences
Ontology-Based Geospatial Data Query and Integration
GIScience '08 Proceedings of the 5th international conference on Geographic Information Science
Composing geoinformatics workflows with user preferences
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
A practical approach to developing a web-based geospatial workflow composition and execution system
Proceedings of the 3rd International Conference on Computing for Geospatial Research and Applications
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The value of service oriented architectures has been demonstrated in several studies. A key aspect of the advantage of web services is their orchestration into complex business workflows. The Organization for the Advancement of Structured Information Systems (OASIS) has recently approved an industry-wide standard for workflow specification, the Business Process Execution Language (BPEL). The Open Geospatial Consortium (OGC), a member of OASIS, has adopted BPEL for its series of interoperability experiments. This paper presents a study concerned with the use of ontology in assisting geospatial web service orchestration. A methodology for calculating the degree of suitability of various candidate workflows is proposed. The implementation of a prototype plug-in for Eclipse-based BPEL editors is discussed. The proposed system presents candidate workflows based on semantic descriptions of feature, coverage and processing services. An evaluation of the system, based on a workflow involving a variety of geospatial web services is also presented.