ISSN : 1796-217X
Volume : 1    Issue : 1    Date : July 2006

Dynamic Web Service Calls for Data Integration
Salima Benbernou and Mohand-Said Hacid
Page(s): 1-10
Full Text:
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Web Services are considered as a dominant paradigm for constructing and composing distributed
business application and enabling enterprise-wide interoperability. A peer to peer architecture
provides a decentralized infrastructure in sync with the spirit of the web and that scales well to its
size. In this paper, we present a framework enabling implicit i.e. dynamic service calls in data
centric Peer to Peer Active XML language. Active XML is a language devoted to the management of
distributed data by embedding Web service calls into XML document. The aim of implicit calls is to
allow dynamic data sources discovery through dynamic services discovery and composition. Implicit
service calls are based on the use of ontologies for describing the domain and functionality of
services to call and an Active XML engine for the call evaluation. The evaluation process deals
mainly with dynamic service composition. It consists of matching OWLS descriptions defined in a
query with service descriptions in a peer-to-peer network. Such a network is structured in such a
way that peers with similar functionalities are grouped together and each peer makes itself
acquainted with matching relationships between its inputs/outputs and those of other peers.

Index Terms
Semantic web services, data integration, peer to peer, data discovery.