READIT - 2009 - Indira Gandhi Centre for Atomic Research

Proceedings of READIT-2009, Kalpakkam - 603 102, 29-30 Dec 2009
Business rule driven service composition – This composition architecture contains four
components. The components are a definer, scheduler, constructor and executor.
Declarative service composition – An initial situation and desired goal is taken and generic
plans are generated to reach the goal. The first phase is achieved using Planning Domain
Definition Language. Then a single generic plan is chosen and appropriate services are
discovered and a workflow is built from it.
Automated Vs Manual service composition – BPEL4WS is a manual web service composition
technique. An automated service composition description can be done with ontologies. To
induce dynamicity in service composition ontology or artificial intelligence planners are used.
6. COMPARATIVE STUDY OF STATIC AND DYNAMIC WEB
SERVICE COMPOSITION IMPLEMENTATIONS
Web service composition refers to the integration of more than one web service to realize
business functionality.
In this paper static composition using BPEL and dynamic composition using OWLS-Xplan is
implemented and discussed. The motive of the paper is to learn the practices of static and
dynamic composition to promote development of a dynamic service composition algorithm.
This is a base study paper.
Static Composition Approach – In this dissertation static composition is implemented using
Business Process Execution Language (BPEL). Three web services are created and composed
statically. The J2EE based web services are AccountManagerWS, StockManagerWS and
OrderManagerWS
Fig. 1: AccountManagerWS
77
4