Dynamic Composition of Web Services using Semantic e-Workflow Processes

이용주

Journal of The Korea Society of Computer and Information

Abbr : JKSCI
2005, 10(1), pp.101-112
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science

이용주 ¹

¹상주대학교

ABSTRACT

Recently, one of the most challenging problems is to compose web services dynamically, that is, on demand. In particular, when a functionality that cannot be directly realized by existing services is required, existing services may be combined together to fulfill the request. This paper is to implement the dynamic composition of web services using existing workflow technologies. Workflow systems play a major role in E-businesses. However, due to the composition of web services using workflows differs from the design of traditional workflow systems, two problems need to be solved: (1) how to efficiently discover web services and (2) how to facilitate the interoperability of heterogeneous web services. In this paper, we present a matching algorithm for web service discovery and propose an approach based on the use of ontologies to facilitate the integration of web services. Finally, we have built a prototype system to illustrate how to the dynamic composition of web services are achieved.
KEYWORDS

web services composition, workflow process, matching algorithm, OWL-S, ontologies
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