Web Service Composition creates new composite Web Services from the collection of existing ones to be composed further and embodies the added values and potential usages of Web Services. Web Service Composition includes two aspects: Web Service orchestration denoting a workflow-like composition pattern and Web Service choreography which represents an aggregate composition pattern. There were on...

Web-based software is fast becoming an integral part of e-business. In particular, the proliferation of ecommerce and the use of distributed computing in recent years have fueled the explosive growth of web services. Web service composition helps build web-based applications by composing as well as integrating existing web services. In general, web services are diverse in terms of both function...

Web services are becoming the dominant paradigm for distributed computing and electronic business. This has raised the opportunity for service providers and application developers to create value added services by combining web services. Several web service composition solutions have been proposed, e.g. BPEL4WS. However, these approaches are either not flexible or too complicated as they lack p...

Web-service-composition (WSC) workload execution inside a hybrid cloud environment is challenging. A dynamic approach for allocating resources to various tasks, as well associated sub-tasks having satisfactory quality-ofservice (QoS) requirement, necessary the present real-time demand. As result of focusing primarily on decreasing processing time cost, current approaches improve latency energy ...

Automatic composition of Web services is a challenging task as independently developed Web services are not always compatible with each other. In order to resolve the heterogeneity between Web services and improve the quality of Web service composition, we propose a new approach based on semantics for Web service composition, which widely deploys Petri Nets and ontology. This paper proposes a f...

Web Services have become a promising technology to design & build complex enterprise business applications out of single web based software components. Existing technologies of Web Services are extended to give value added customised services to users through composition, which are developed by different organisations & offer diverse functionalities, behavioural properties & Quality of Service ...

The topic of this thesis is web service composition with using planning methods and knowledge approach. Web services are programs located on computer networks (mainly on internet). Each web service provides certain functionality (e.g. translation between two languages). If it is not possible fulfill request by one web service (e.g. it’s needed translate word from English to Spanish but there is...

This paper presents an architecture and a methodology for agent-based Web service discovery and composition. We assume that Web services are described with declarative specifications like DAML-S. Based on the declarative information about services, symbolic reasoning can be applied while searching for or composing automatically new services. We propose that symbolic agent negotiation could be u...

Web Services and service-oriented architectures (SOAs) represent a new paradigm for building distributed computing applications. In recent years, they have started to play a critical role in numerous e-Science and eCommerce applications. The advantages of Web Services, such as their loosely coupled architecture and standardized interoperability, make them a desirable platform, especially for de...