نتایج جستجو برای: web service composition
تعداد نتایج: 766691 فیلتر نتایج به سال:
Performance has been one of the major concerns in Web Services research area. Because of the underneath heterogeneous networks and platforms, service providers do not guarantee the quality level of service negotiated in the contract. Besides, the performance of service composition needs to be assured to adapt dynamic service composition. We proposed a Probebased Web Service composition environm...
In today’s Web, Web Services (WSs) are created and updated on the fly Nowadays, for answering complex needs of users, the construction of new web services based on existing ones is required. It has received a great attention from different communities. This problem is known as web services composition. However, it is one of big challenge problems of recent years in a distributed and dynamic env...
Virtual enterprise is a temporary network of independent companies or enterprises that can quickly bring together to fulfill a value-added task. With the development of Web service technologies, the enterprise business systems can be encapsulated as Web services. Establishing a virtual enterprise is actually a process of Web service composition. As more and moreWeb services with the same functi...
The description of interactions among Web Services with regard to the exchange of messages, their composition, and the sequences in which they are transmitted and received is an important problem. While some efforts tackle this problem by defining standards for static processes others aim at composing complex services on-the-fly using AItechniques. The present paper follows this AI approach and...
With the emergence of Web service technologies, it has become possible to use high level megaprogramming models and visual tools to easily build distributed systems using Web services as reusable components. However, when attempting to apply theWeb service composition paradigm in practical settings, some limitations become apparent. First of all, all kinds of existing “legacy” components must b...
With the increasing popularity of Web services and increasing complexity of satisfying needs of users, there has been a renewed interest in Web services composition. Composition addresses the case of a user request that cannot be satisfied by any available Web service, whereas a composite service obtained by integrating Web services might be used. Because Web services originate from different p...
Web services have become a universal technology for integration of distributed and heterogeneous applications over the Internet. Many recent proposals such as the Business Process Modeling Language (BPML) and the Business Process Execution Language for Web Services (BPEL4WS) focus on combining existing web services into more sophisticated web services. However, these standards exhibit some limi...
The composition of elementary web services to larger-scale services has become an important means to enhance e-business collaborations. If such composite web services can also integrate legacy components that are not yet provided as web services, the number of possible compositions is increased. Following a process-oriented approach, the compositions can be described as controland data-flow bet...
In order to develop a Supercomputing Cloud Platform (SCP) prototype system using Service-Oriented Architecture (SOA) and Petri nets, we researched some technologies for Web service composition. Specifically, in this paper, we propose a reliability calculation method for Web service compositions, which uses Fuzzy Reasoning Colored Petri Net (FRCPN) to verify the Web service compositions. We put ...
Web service which is a kind of component on the Internet shows good encapsulation, loosely coupled and cross-platform. However, the single Web service has inevitable limitations in functionality; it can’t provide people with more function and complex service. In order to reduce the cost and time of developing, and achieve services value-added and reuse, we need to combine existing services to f...
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