An Algorithm of Service Selection Based on QoS Preference in Network Computing Environment

In order to select service based on users’ QoS preference, the paper studied and presented several ways to describe QoS preference information. Then, these ways were applied to the algorithm of service selection, the QoS preference function and user’s satisfaction degree which as an evaluation criteria of user were defined. Subsequently,the paper put forward an algorithm of service selection based on QoS preference. Several tests showed that the algorithm could reliably select the optimal service with a good stability.