A fuzzy-based approach for selecting the optimal composition of services according to user preferences

Service-Oriented Applications (SOA) are being regarded as the main pragmatic solution for distributed environments. In such systems, however each service can response the user request independently, it is essential to compose them for supplying a compound value-added service. Since, there may be a number of compositions to create the requested service, it is important to find one which its properties are close to user´s desires. In this paper, a new approach for evaluating the service compositions is presented which attempts to obtain the user desires. This approach uses fuzzy logic to inference based on quality measures ranked by user. Using this technique enables us to find the best compose of services according to user preferences.