Abstract:
Web services provide interfaces to web resources
described by WSDL interface definitions. The Web
Service MEDiator system (WSMED) enables querying
data accessible through web services. WSMED allows
web service meta-data to be automatically extracted
from any WSDL description. Then views can be created
in terms of the imported meta-data and queried using
SQL. To enhance query performance, WSMED permits
to complement the automatically extracted web service
meta-data with semantic enrichments. A WSMED
prototype is being evaluated over existing web services
to verify the effectiveness of the approach. It is being
investigated how semantic enrichments and other query
optimization methods are useful for efficient querying of
mediated web services.
