16. Architecture Diagram Service providers describe their Web Service interfaces using WSDL. Data consumed and produced is defined using XML Schema. OWL Ontologies are created to Describe the information contained Within Bioinformatics data structures. Serialisation and Realisation Mappings describe how to transform XML dopcuments to and from [OWL-XI] Semantic Annotations associate each WSDL Message part with a concept from the ontology. [OWL XIS] are generated to validate ontology instances.
20. Mapping Mechanics S X “ foo” S/* S/* xsd:string xsd:string X “ bar” D Y “ foo” D/* D/* xsd:string xsd:string Y “ bar” m 1 : S/X -> D/Y m 2 : X/$ -> Y/$
The presentation concentrates on the problem that arises when service providers use different representations for conceptually equivalent information. I will present a solution using ontolgoies that capture data structure and semantics, and a mapping language to express the relation between data models and ontologies This work is set against the background of a bioinformatics use case… in the context of the mygrid project Real Datasets Real Services