ABSTRACT
OWL-S .............................................................................................. 105 7.2 Semantic Interoperability Framework for Geoservices (SIFGEO) .............. 107
7.2.1 Geosemantic Modeling and Spatial Relevance ................................. 107 7.2.2 Semantic Framework Overview ........................................................ 108 7.2.3 Framework Ontologies ...................................................................... 108 7.2.4 Relations with ISO Specifi cations ..................................................... 109
7.3 Geo-Operation Characterizations: OPERA .................................................. 110 7.3.1 Atomic Geo-Operations .................................................................... 110 7.3.2 Ontology Design-OPERA-R and OPERA-D ................................. 111 7.3.3 OPERA-R: Feature Processing Operations ...................................... 112 7.3.4 Classifi cation of Operations .............................................................. 112 7.3.5 Operation Type Descriptions ............................................................ 113
7.4 Case Study .................................................................................................... 114 7.5 Deployment and Conclusion ......................................................................... 115 References .............................................................................................................. 117
There is an increasing need for organizations to integrate and reuse geo-information and geoservices from within and outside the organization. These activities are typically performed in the context of the spatial information infrastructure (SII). The process of integrating services is commonly referred to as service chaining. This requires that services can be easily found, and that they are executable and interoperable. Interoperability means that the services “understand” each other’s messages. A major impediment is formed by the semantic heterogeneity (the differences in meaning) of geo-information and of the functionality of geoservices.
