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The issue of information overload is quite well resolved in the area of textual documents available on the net by using the paradigm of information filtering. However, as the idea of applications of Internet is still changing and evolving into the more and more dynamic concept connected with the paradigm of Web services, there also appears a need for(More)
The need for filtering of services results from the ever growing number of available Web services which offer similar functionalities. The filtering process is based not only on the functional aspects of services, but also on non-functional ones. One of the weaknesses of the filtering process is lack of high efficiency and its complexity as processing(More)
The Web services technology allows for easy creation of complex applications consisting of smaller components - Web services. This article performs an in-depth analysis of a Web services’ reliability problem for both atomic and composite web services. Is there really a problem of low reliability for composite applications?
Service oriented architecture is gaining momentum. However, in order to be successful, the proper and up-to-date description of services is required. Such a description may be provided by service profiling mechanisms, such as one presented in this article. Service profile can be defined as an up-to-date description of a subset of non-functional properties(More)
Security and trust aspects, perceived as difficult to quantify, have been neglected in various service interactions. However, factors related to security and trust are in fact crucial in the overall value of service quality. A security ontology that enables a quantification of risks related to the usage of Semantic Web services in enterprise information(More)
The success of Web services technology depends heavily on the effective discovery and sharing of services in distributed environments using various registries. These tasks should take into account both functional and non-functional properties (NFP) of a service. Such properties may be for example: execution time, reliability, security, cost or provider's(More)
Service oriented architecture (SOA) has emerged as ap opular software paradigm for integrating distributed applications. Services are generally regarded as interoperable building blocks for constructing, integrating, and merging applications. However, existing SOAb ased solutions often focus on solving technical integration problems while neglecting(More)