PSR : Pre-computing Solutions in RDBMS for FastWeb Services Composition Search

In recent years, the Web services composition has received much attention. By Web services composition, we mean taking advantage of currently existing Web services to provide a new service that does not exist on the repository. In this paper, we propose a new system called PSR for Web services composition search using a relational database. We also propose algorithms for pre-computing Web services composition using joins and indices. We demonstrated that our pre-computing Web services composition approach in RDBMS yields lower execution time and good scalability when handling a large number of Web services and user queries.