Weaving Functional and Non-Functional Attributes for Dynamic Web Service Composition

Given the numerous, potentially reusable, Web services available on the Internet, search and composition techniques that efficiently discover viable services will be a strong requirement. A major challenge for dynamic Web service composition will be the ability to measure the quality or reliability of services that are delivered. This paper presents a solution for dynamic Web service composition that leverages non-functional attributes provided in the form of Service-Level Agreements (SLA's). The objective of the work is to understand the most efficient algorithms for discovering and composing web services into capabilities with predictable quality.