Web Service Discovery and Dynamic
Invocation based on UDDI/OWL-S
Jianjun Yu and Gang Zhou
Abstract
With the development of web technology and e-business, the Web Services
paradigm has been widely accepted by industry and academic research.
More and more web applications have been wrapped as web services, which
triggers the change of research focus from finding and integrating them
to maximizing reuse. Usually a service requestor retrieves (web)
service advertisements out of a UDDI registry based on keywords, like
in search engines, which inevitably brings the difficulty of
discovering the most appropriate service from a massive number of
existing services. This paper briefly introduces a new mechanism to
discover and match services in a more fine-grained manner by taking
advantage of UDDI and OWL-S. UDDI is used to discover approximate
services syntactically by adding new elements and an API. OWL-S is used
to match the exact service semantically using ontologies and inference.
Finally this paper draws out a framework for discovering and invoking
services dynamically.