International Conference on IT to Celebrate S. Charmonman's 72nd Birthday, March 2009, Thailand
Abstract
Enterprise Information Systems
(EISs) are built in isolated and
independent environments leading to
unpredictable and incompatible structure
of data stores. An EI system can expose its
functionalities as Web services to share
resources of existing global internet
infrastructure. The goal of this research
paper is to facilitate inter-operation
between Web services. Successful and
reliable information (message) exchange
between Web services is necessary to meet
the current challenge of Enterprise
Information Integration (EII). A real-\ud
world business process, which consists of
Web services WS1 and WS2, can be used
as a practical scenario for data or message
exchange between Web services. In this
scenario, message is exchanged by using
output of WS1 as input of WS2. If data
format of WS1 and WS2 are heterogeneous
or incompatible, interoperation between
them is impossible if data mediation is not
used to resolve message level conflict and
incompatibility in the context of syntax
and semantics. Data Mediation requires
mapping a message from one format to
another. We propose to derive a mediation
technique that will enable previously less
inter-operative heterogeneous Web
services to become more inter-operative
now. To improve inter-operational
performance between Web services our
data mediation approach extends and
utilizes existing Web service supporting
tools WSDL and SAWSDL. (Authors' abstract
