Web services composition is an emerging paradigm for enabling application integration within and across organizational boundaries. Current Web services composition proposals, such as BPML, WSBPEL, WSCI, and OWL-S, provide solutions for describing the control and data flows in Web service composition. However, such proposals remain at the descriptive level, without providing any kind of mechanis...

Service Oriented Architectures enable a multitude of Web services to provide loosely coupled and interoperable services at different Quality of Service level in the recent few years. Dynamic Web services composition offers the opportunity for creating new web services at runtime from those already published in UDDI registry. However, this composition requires necessarily quantifying criteria fo...

Several works have addressed the management of individual Web Services. However, the specific management requirements of workflow-based web service compositions such as those specified in the BPEL have not yet been considered. In this paper, we present several management requirements in web service compositions such as discovery and selection management, SLA and policy management, middleware se...

Web services have received widespread attention and acceptance in the software engineering community. Automatic composition of services, to meet user’s requirements, is a powerful mechanism to ensure satisfaction of varied needs and thus enable the vision of Web services. Although Web services are equipped with the fundamental concepts and supporting technologies, the architectural style of the...

In dynamic Web service environments, the performance of the Internet is unpredictable; the reliability and effectiveness of remote Web services are also unclear. Therefore, it can hardly be guaranteed that the quality of Web service (QoWS) attributes of Web services do not fluctuate with the dynamic Web service environments. When a composite service is planned in the context of dynamic service ...

This paper presents a survey of relevant transactional and recovery issues for the development of processes that are composed of web services in a service-oriented architecture (SOA). A process in an SOA is not a traditional ACID transaction due to the loosely-coupled, autonomous, and heterogeneous nature of the execution environment. As a result, processes that are composed of web services can...

This paper gives a survey on the current state of Web Service Compositions and the difficulties and solutions to automated Web Service Compositions. This first gives a definition of Web Serv ice Composition and the motivation and goal of it. It then explores into why we need automated Web Service Compositions and formally defines the domains. Techniques and solutions are proposed by the papers ...

In recent time, as technology is the basic need and web service is emerging as the solution for many problems. Web is the biggest source of information and services. Most of the services are already in existence. The web service composition means to develop new service by composing the related existing services. Optimize Web service selection is still a challenging task. In this paper, we prese...

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From a business perspective, Web services represent a new channel for the offer as well as the acquisition of business capabilities. The full automation of the interaction process between providers and consumers is a peculiarity of the Web service channel. Beyond electronic data transfer, automation extends to all aspects of business interaction. The negotiation of terms and conditions for serv...