A web service selection model using multi-agent negotiation and planning

Among the exchange of e-business, how to make users exactly and full search demanded commodities is an important research question, and the web services for searching commodities are the keys. In the process of searching commodities, users can gradually use many kinds of the attribute values of the commodities to invoke relevant web services and get demanded commodities. In existing methods, users can only one by one invoke web services according to having been appointed the route of the commodities' attributes, but when it exists some the routes of the ones, users cannot negotiate and select the attributes, find a best the route of the ones, thereby invoke corresponding web services sequence. On basis of automatic negotiation based on agent, this paper proposes a web service selection model, negotiating selection algorithm and negotiating discount algorithm for common goal by using multi-agent negotiation and planning, which makes user agents negotiate and select web services corresponding with their demand in the light of the commodities' attributes such as price, brand, credit and quality in some existing service agents' workflow templates for searching commodities, compose a new service workflow, and invoke demanded services. Finally the process and results of the algorithms are briefly illustrated, and it shows better applied effect.