Designing of the composite services with desired quality is an interesting challenge in web service environments. In a QoS-aware web service composition, appropriate services with acceptable quality are selected among several functionequivalent candidate services. The selection is performed in such a way that creates a composition with optimal quality which can satisfy user’s constraints. In th...

Service composition, which enables users to construct complex services from atomic services, is an essential feature for the usability of Mobile Ad hoc Networks (MANETs). Service composition in MANETs should be fault-tolerant and distributed. Efforts in this area are rare and sounds not meet the requirements very well. In this paper, we present a distributed Fault-Tolerant Service Composition P...

The composition of services that are indexed in a large-scale service directory often involves many complex queries issued by the service composition algorithm to the directory. These queries may cause considerable processing effort within the directory, thus limiting scalability. In this paper we present a novel approach to increase scalability: The directory offers a compact digest that servi...

In the multi-agent based semantic web service composition, each of the agent capability is used to serve a particular service request. In this paper, two variations of semantic web service composition process have been presented. The variations are based on the concept that the negotiation between the service requester and the service providers has been performed before the selection of final s...

In an open environment populated by large numbers of services, automated service composition is a major challenge. In such a setting the efficient interaction of directory-based service discovery with different service composition algorithms is crucial. In this paper we present a directory with dedicated features for service composition. In order to optimize the interaction of the directory wit...

Service-orientation is gaining momentum in distributed software applications, mainly because it facilitates interoperability and allows application designers to abstract from underlying implementation technologies. Service composition has been acknowledged as a promising approach to create composite services that are capable of supporting service user needs, possibly by personalising the servic...