As web service choreography matures, there is greater demand for multi-agent protocols to support argument and argumentation. There is not, however a single canonical argumentation protocol. Instead we find many different styles of argumentation depending on the contest for service interaction. This offers a need for rapid protocol syntheses. In this paper we propose a high level control flow s...

Recently the term Web Services Choreography has been introduced to address some issues related to Web Services Composition. Several proposals for describing Choreography for Business Processes have been presented in the last years and many of these languages make use of concepts as long-running transactions and compensations for coping with error handling. BPEL4WS, the most accredited candidate...

Not only since the upcoming of Service-oriented Architectures the modelling of cross-organizational business processes is a heavily investigated field comprising dozens of standards based on different concepts. New techniques on the implementation site, e.g. Web Service orchestration and choreography, further extended the possibilities and requirements on such standards. To systematically order...

Not only since the upcoming of Service-oriented Architectures the modelling of cross-organizational business processes is a heavily investigated field comprising dozens of standards based on different concepts. New techniques on the implementation site, e.g. Web Service orchestration and choreography, further extended the possibilities and requirements on such standards. To systematically order...

We present a methodology for composing large-grained services that exhibit temporal uncertainty and complex task dependencies. Our multi-agent approach incorporates temporal and stochastic planning paradigms and commitment-based negotiation to achieve the coordinated provision of services with stochastic outcomes. This is all captured within a service-choreography protocol, by which agents can ...

The use of Web services as a means of dynamically discovering, negotiating, composing, executing and managing services to materialize enterprise-scale workflow is an active research topic. Existing approaches involve many disparate concepts, frameworks and technologies. What is needed is a comprehensive and overarching framework that handles the processing and workflow requirements of Virtual O...

A service choreography is a model of interactions in which a set of services engage to achieve a goal, seen from the perspective of an ideal observer that records all messages exchanged between these services. Choreographies have been put forward as a starting point for building service-oriented systems since they provide a global picture of the system’s behavior. In previous work we presented ...

Since, most of the organizations present their services electronically, the number of functionally-equivalent web services is increasing as well as the number of users that employ those web services. Consequently, plenty of information is generated by the users and the web services that lead to the users be in trouble in finding their appropriate web services. Therefore, it is required to provi...

  Response time is one of the critical web service quality dimensions. It refers to how long it takes that a web service responds to request of a user. In order to manage the response time, pricing schemes can work as an efficient access control mechanism. In this paper, we study competition between two providers offering functionally same web services where there is a monopoly service provider...

Towards P2P-based semantic Web service discovery with QoS support p. 18 Global and local QoS guarantee in Web service selection p. 32 Web service discovery and dynamic invocation based on UDDI/OWL-S p. 47 Standards for Web service choreography and orchestration : status and perspectives p. 61 From collaboration models to BPEL processes through service models p. 75 A framework for automated nego...