Web services provide a standard means for the interoperable operations between electronic devices in a network. The mission of Web service discovery is to seek an appropriate Web service for a service requester on the basis of the service descriptions in Web service advertisements and the service requester’s requirements. Nevertheless, the standard language used for encoding service description...

Service-oriented architecture (SOA) is a software design paradigm for creating highly modular, distributed applications.Web services can implement welldefined, atomic functions which can be composed into high-level business processes. The composition of clearly separable modules is one of the key advantages of SOAs. This article provides an overview of research, challenges, and competitions in ...

As we know daily thousands of new service providers register their services in the UDDI. The number of service providers providing the same functionality increases day by day. So it is very difficult for the service requester to choose the best service provider for their requirements from the UDDI. Hence web service selection plays a huge role in providing the best web services to the service r...

This article explores the design and construction of a geospatial Internet web service application from the host web site perspective and from the perspective of an application using the web service. The TerraService.NET web service was added to the popular TerraServer database and web site with no major structural changes to the database. The article discusses web service design, implementatio...

Our research on Web Services is organized into two related projects. First, we develop Web Service Offerings Language (WSOL) for formal specification of various constraints and classes of service for Web Services. A service offering in WSOL is a formal representation of one class of service of one Web Service. It contains formal representation of various constraints: functional (pre-, post-, an...

Despite significant advances in the access control domain, requirements of new computational environments like web services still raise new challenges. Lack of appropriate method for specification of access control policies (ACPs), composition, verification and analysis of them have all made the access control in the composition of web services a complicated problem. In this paper, a new indepe...

Web Services are mounting as an inventive mechanism for rendering services to subjective devices over the WWW. As a consequence of the rapid growth of Web Services applications and the plenty of Service Providers, the consumer is facing with the inevitability of selecting the “right” Service Provider. In such a scenario the Quality of Service (QoS) serves as a target to differentiate Service Pr...

Web Service Composition creates new composite Web Services from existing Web Services which embodies the added values of Web Service technology and is a key technology to solve cross-organizational business process integrations. We do a survey on formal methods for Web Service Composition in the following way. Through analyses of Web Service Composition, we establish a reference model called RM...