Home // ICSEA 2012, The Seventh International Conference on Software Engineering Advances // View article
Authors:
Chiaen Lin
Krishna Kavi
Sagarika Adepu
Keywords: WSDL; Ontologies; Quality of Services; Non-functional Properties; Service Composition
Abstract:
Web Services Description Language (WSDL) is an XML-based language for describing Web services and how to access them. There are established standards and frameworks for specifying and composing Web services based on the functional properties. A WSDL extension to specify non-functional or Quality of Service (QoS) properties is proposed in this paper. This enables the QoS-aware Web service composition. This paper introduces a framework that adapts publicly available tools for Web services, augmented by ontology management tools, along with tools for performance modeling to exemplify how the non-functional properties such as response time, throughput, and utilization of services can be addressed in the service acquisition and composition process. The framework provides support to achieve specified QoS goals by discovering services based on both functional and non-functional properties, and composing selected services such that the composed system satisfies the overall QoS requirements. The framework can be easily extended to automate the composition of services and update both functional and non-function properties of the combined services.
Pages: 90 to 97
Copyright: Copyright (c) IARIA, 2012
Publication date: November 18, 2012
Published in: conference
ISSN: 2308-4235
ISBN: 978-1-61208-230-1
Location: Lisbon, Portugal
Dates: from November 18, 2012 to November 23, 2012