Title: An efficient service composition using frequent service sequence patterns over extended web service architecture
Authors: M. Nageswara Guptha; A. Chitra
Addresses: PSG College of Technology, Coimbatore, Tamil Nadu, India ' PSG College of Technology, Coimbatore, Tamil Nadu, India
Abstract: In the current business scenario business processes are realised using a stack of simple services selected from service repository to satisfy the business requirement of an enterprise or organisation. The service composition methodologies in common build the composite service using composition tree-based functional and non-functional requirements of a business process. These methodologies do not focus in storing the composition tree and reusability. In addition the discovery and composition are repeated for all instances of similar requirement. This paper proposes an efficient service composition methodology over extended web service architecture to ensure reusability, quick response, efficient space utilisation and availability of services. The composition tree is transformed to symbolic notations and stored in service sequence registry. The frequent service sequence patterns are then extracted from service sequence registry and stored for future reference. These patterns are used for service allocation during composition. The contents of the service sequence registry and frequent service sequence pattern registry are replicated in different geographical location to ensure availability. The contents of replicated instances are consistently updated using push methodology. Experiments showed significant improvement of infrastructure of web service architecture in terms of availability, space requirement and time to allocate service for composition.
Keywords: business intelligence; distributed application development; QoS aware service integration; quality of service; service composition; service integration; symbolic notations; frequent service sequence patterns; extended web service architecture; service allocation; web services; service availability; space requirements; reusability; quick response.
International Journal of Information and Communication Technology, 2016 Vol.9 No.1, pp.1 - 16
Received: 25 Oct 2013
Accepted: 13 Apr 2014
Published online: 13 Jul 2016 *