UDDI registries are included as a standard offering within the product suite of any major SOA vendor, serving as the foundation
for establishing design-time and run-time SOA governance. Despite the success of the UDDI specification and its rapid uptake
by the industry, the capabilities of its offered service discovery facilities are rather limited. The lack of machine-understandable
semantics in the technical specifications and classification schemes used for retrieving services, prevent UDDI registries
from supporting fully automated and thus truly effective service discovery. This paper presents the implementation of a semantically-enhanced
registry that builds on the UDDI specification and augments its service publication and discovery facilities to overcome the
aforementioned limitations. The proposed solution combines the use of SAWSDL for creating semantically annotated descriptions
of service interfaces and the use of OWL-DL for modelling service capabilities and for performing matchmaking via DL reasoning.
Keywords Semantic Web Services - Web Service Discovery - Universal Description Discovery and Integration (UDDI) - Semantic Annotations for WSDL (SAWSDL) - Web Ontology Language (OWL)