Session 1928 Semantic SOA Gvernance Deck

Editor's Notes

• #3: Today, search engines use keywords and tags embedded in a web page instead of the semantics in it. Photo Credit: Wikipedia
• #4: Photo credits: Flickr, Duncan Hull http://www.flickr.com/photos/dullhunk/639163558/
• #6: What are the key elements required to effectively attain SOA governance that can help accelerate SOA success?
• #9: With Semantic SOA, it paves the way for automating the discovery of services that can fulfill certain needs, for automating the integration of heterogeneous data models, for better supporting the combination of services or for the creation of smarter systems, as wells as invocation and monitoring of combined services. Using Ontologies enables the development of more adaptable and more extensible systems which are in fact some of the main benefits attributed to SOA. Service Registry : Use of UDDI registry to publish semantic web data for semantic-based description, discovery and integration. Mapping the semantic web concepts to UDDI data model using the tModel structure, which makes possible to store semantically annotated resources internally in UDDI. Service Discovery : Discovery is effectively the query interface over the service repository. One of the strengths of the Semantic SOA approach however is that services are retrieved not by syntactic interfaces and unstructured meta-data but via ontological reasoning. The main discovery goal involves submitting a user needs, and optimally the data to be passed in the intended invocation, and receiving back a list of services. It Provides: Service discovery (what service satisfies my needs?) Service composition (how do I combine services to get what I want?) Service publication (how do I let people know about my service?) Service verification (how do I know that a service does what I want? Service Selection : Having obtained a list of matches from the discovery component, the selection component aids in the selection of a service for invocation. The main goal involves submitting the list of services or mediators, together with an ontology that will distinguish between them in terms of degree of match, QoS profiles, trust/policy matters. Promote Service Reuse Enriching the service metadata using Ontologies can helps consumers and providers to easily identify services. This eliminates service duplication and promotes reuse. Improved Collaboration via Folksonomy Semantic enrichment of Folksonomy tags by selecting and combining relevant bits of knowledge from Ontologies.
• #12: The problem with tags is difficult to index in meaningful ways due to the lack of machine-readable, human-understandable, textual data associated with them.