Composition automatique et semi- automatique des services Web sémantique Par l’utilisation des techniques de planification distribuées «Les systèmes multi agents »

Abstract

Composing web services is find an execution order of these services, Orderingweb services is very similar to a problem of automatic planning, so the composition of web services can be implemented using a multi-agent system. Web services share with the multi-agent systems several properties whose agents methodologies explicitly take it into account in their draft options. In this context, we propose MAS4WSC an multi agent system for web services composition. For each service is associated an agent, all agents coordinate their skills to perform a task submitted by the user. The proposed system is based on Contract Net Protocol. The agents their proposals in the form of tender. For a user query, multiple dial plans can be found, then we must find the best plan, the selection of the best one is based on some quality criteria (eg execution time of the plan).