This thesis presents an approach to design, specify, validate, verify, implement, and evaluate composed web/grid services. Web and grid services can be composed to create new services with complex behaviours. The BPEL (Business Process Execution Language) standard was created to enable the orchestration of web services, but there have also been investigation of its use for grid services. BPEL s...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

OWL-S, one of the most important Semantic Web service ontologies proposed to date, provides a core ontological framework and guidelines for describing the properties and capabilities of their web services in an unambiguous, computer interpretable form. Predicting the reliability of composite service processes specified in OWL-S allows service users to decide whether the process meets the quanti...

A novel methodology for modeling the reliability and performance of web services (WSs) is presented. To present the methodology, an experimental environment is developed in house, where WSs are treated as atomic entities but the underlying middleware is partitioned into layers. WSs are deployed in JBoss AS. Web service requests are generated to a remote middleware on which JBoss runs, and impor...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

Middleware for Web service compositions, such as BPEL engines, provides the execution environment for services as well as additional functionalities, such as monitoring and self-tuning. Given its role in service provisioning, it is very important to assess the performance of middleware in the context of a Serviceoriented Architecture (SOA). This paper presents SOABench, a framework for the auto...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...