This paper presents a QoS (Quality of Service) based selection and composition model for semantic web services in which the negotiation is performed with all the discovered service providers and the negotiation results are used in the selection process. In semantic web service composition, the selection can also be performed after negotiating with all the discovered service providers and the ne...

The semantic web service composition systems can also be implemented using the concept of multi-agent systems. In this approach, each of the agent capability is used to serve a particular service request. Paper presents two models for multi-agent based semantic web service composition process, differing on the point of using a coordinator for controlling the process or not. Further, based on on...

Service-oriented computing is a new computing paradigm that utilizes services as fundamental elements for developing applications. Service composition plays a very important role in it. This paper focuses on service composition triggered by service requirement. Here, the processes modeling the requirement should be treated in parallel with describing service and a same ontology should be adopte...

One of the most challenging issues of service–centric software engineering is the QoS–aware composition of services. The aim is to search for the optimal set of services that, composed to create a new service, result in the best QoS, under the user or service designer constraints. During service execution, re-planning such a composition may be needed whenever deviations from the QoS estimates o...

The concept of Dynamic Service Composition is to create a complex composite service through combining multiple software or hardware components at runtime. Dynamic Service Composition is similar to object-oriented or component-based software design approach since in both approaches an application is built as a combination of multiple components. However, in Dynamic Service Composition, an applic...

Automated service composition is an important approach to automatically aggregate existing functionality. While different planning algorithms are applied in this area, heuristic search is currently not used. Lacking features like the creation of compositions with parallel or alternative control flow are preventing its application. The prospect of using heuristic search for composition with qual...

Resulting from the constantly increasing usage of service oriented computing, the problem of automatic composition of services is rapidly gaining attention. Many solutions have been proposed, yet too little attention has been paid to thoroughly analyzing the different needs that require the ability of (automatic) service composition. This paper therefore aims at identifying the different cases ...

service Figure 1. The Architecture of MultiGranular The architecture of MultiGranular is shown in Figure 1. In order to respond to the complexity of multi-tenant service composition in cloud computing, we give the corresponding solving strategies: Hierarchy. Considering from similar, correlation and aggregation relationships of the granularity among services, the process of MultiGranular comput...

In this paper, Petri nets are used to model the different components of service composition, and form the energy consumption model of service composition based on the relationship between components, Agent is also introduced in the energy consumption management process. Then, an adaptive energy consumption strategy are proposed to dynamically ensure that service composition can get the lowest e...

Composition of services, i.e., providing new services by combining existing ones, is a pervasive idea in ubiquitous computing. We surveyed the field by looking at what features are actually present in technologies that support service composition in some form. Condensing this into a list of features allowed us to discuss the qualitative merits and drawbacks of various approaches to service comp...