Title:
Web Service
Composition
Approaches to Support Dynamic E-Business Systems
Abstract: Nowadays,
since many companies decide to implement and publish their core
business
and outsource other application services over Internet, the number of
Web
services has
dramatically increased. Thus, Web service based dynamic E-Business, as
the
next evolutionary step of E-Business, becomes an important task in the
industry.
In many cases, a single service is not sufficient to fulfill the user's
request
and services should be combined together. For example, if a user wants
to participate on one international
conference, it is not sufficient to register only, but he should also
take
care of booking a flight, reserving a hotel, renting a car, and so on.
Thus,
dynamic composition of Web services to provide considerable flexibility
for modifying and extending
the operations of E-Business systems during runtime, is one of the
recent
critical issues. A number of approaches have been presented, to solve
this
problem. In this paper, we classify these approaches to three
categories (Workflow-based, XML based, and Ontology-based)
and describe them. Then, we compare these approaches based on
some
benchmarks (like QoS, scalability, and correctness).
Author: Sayed
Gholam Hassan Tabatabae, Wan Mohd Nasir Wan Kadir and Suhaimi Ibrahim