Nasser Bakhsh

Web services are self-contained, modular units of application logic which provide business functionality toother applications via Internet connections. Several models have been used to compose Web services which are mainly served at specification level and provide static data dependent coordination processes. Hence they can not support reconfigurable dynamic ,coordination processes in which participant Web services and the coordination process

ABSTRACT Traditional schedulers in the grid environment do not support semantic description of grid resources and jobs. They do exact matching between resource requesters and providers. These mechanisms are too restrictive because there is no prior agreement on how a resource or a service or a job will be represented. In this paper, we propose an extensible scheduler that uses the semantic description of entities related to scheduling. More precisely, the scheduler uses the semantic description of resources and jobs by means of ontology. Furthermore, it exploits a semantic matching scheme to perform scheduling. Experimental results show the feasibility and effectiveness of the proposed scheduler.