Ontology Based Qos Driven Web Service Discovery
In today’s scenario web services have become a grand vision to
implement the business process functionalities. With increase in
number of similar web services, one of the essential challenges is
to discover relevant web service with regard to user specification.
Relevancy of web service discovery can be improved by
augmenting semantics through expressive formats like OWL.
QoS based service selection will play a significant role in
meeting the non-functional user requirements. Hence QoS and
semantics has been used as finer search constraints to discover
the most relevant service. In this paper, we describe a QoS
framework for ontology based web service discovery. The QoS
factors taken into consideration are execution time, response
time, throughput, scalability, reputation, accessibility and
availability. The behavior of each web service at various
instances is observed over a period of time and their QoS based
performance is analyzed.
Keywords: Web services, Semantic Web Service Discovery, Ontology, Quality of service, QoS based WSD, QOS parameters
Download Full-Text
