Classes of service are a mechanism for differentiation of service and quality of service (QoS) that incurs less overhead than custom-made Service Level Agreements (SLAs), user profiles, and other alternatives. For their formal representation for XML (Extensible Markup Language) Web Services, we have developed the Web Service Offerings Language (WSOL). A service offering in WSOL is a formal desc...

Language assessment literacy is a key area for researchers or anyone with an interest in improving the quality of teaching. A good understanding development instruments very important learning process. The aims study are to analyze what extent pre-service English teachers academically and professionally prepared carry out tasks related assessing students' language skills how perceive their teac...

This report presents the specification of the Unified Service Query Language (USQL), which is aimed at supporting the discovery of heterogeneous Web, Peer-to-Peer, and Grid services. At the conceptual level, USQL establishes an abstract and service type-independent viewpoint of the service properties, which are constrained by service requesters through their search criteria. At the grounding le...

A computing platform includes a programming environment to create applications with a coherent operating system and processor. The Service ORiented Computing EnviRonment (SORCER) is an object-oriented cloud platform that targets service abstractions for transdisciplinary complexity with support for high performance computing. SORCER service-commands are expressed in ExertionOriented Language (E...

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...