This paper presents an agent-based negotiation framework to support the autonomous establishment and maintenance of Service Level Agreements for QoS aware web service compositions. It uses a two-layered architecture for the coordinated negotiation of QoS constraints, in order to ensure collective functionality, endto- end QoS and the stateful coordination of complex web service compositions. It forms part of the adaptive Agent based Negotiation of SLAs for Web Service Compositions 2 service composition management framework which is being developed by the ASAPM Project1. We present a prototype implementation of the framework. It is built on top of the JADE agent framework and also uses the WS2JADE plug-in which enables the integration of web services and JADE agents.
Proceedings of the Joint Conference of the INFORMS Section on Group Decision and Negotiation, the EURO Working Group on Decision and Negotiation Support, and the EURO Working Group on Decision Support Systems (GDN 2007), Montreal, Canada, 14-17 May 2007,