WSDL on the Semantic Web - slide "Discovery (and Filtering and Selection)"

UDDI is "a 'meta service' for locating web services by enabling robust queries against rich metadata." -- UDDI 3.0
UDDI 3.0 connecting to taxonomies
From taxonomies to ontologies
- Not just tags or categories
- Inferred/implicit classifications
- Many, many ontologies
  - NCI Cancer Ontology example
Various reasoning mechanisms
- Very good matching need for some tasks
- Heuristic, keyword based matching -- boo