The matchmaker client API extends UDDI
API, specifically UDDI4J API to support semantic publishing and searching
operations. Users can use both UDDI API functionality and added functionality.
The Matchmaker Client Servlet provides web interface for a OWL-S/UDDI matchmaker using the OWLS Matchmaker Client.
OWL-S/UDDI matchmaker combines UDDI's proliferation into the web service infrastructure and OWL-S's explicit semantic description of the web service. The paper "Adding OWL-S to UDDI, implementation and throughput" provides insights of the matching algorithm and implementation of the OWL-S/UDDI matchmaker.