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As the web technology rapidly advances, web services are making significant strides in the Web 2.0 era which goes beyond the existing closed web services and enables one to open and share information freely. Web services are usually provided in a form that uses Open Application Programming Interfaces (Open APIs) as the web service interface. As the number of open APIs increases, mash-up services that...
Web service composition is the process of constructing a set of Web services which, when invoked with some user input in a particular order, can produce the output to the user's requirements. This paper proposes a novel model checking based approach for automated service composition. Modeling services as a set of interleaved processes in a class of process algebra, we formulate service composition...
Web services are software components developed to simplify machine-to-machine interaction over the Web. Many researches are targeted towards Web service standardization, and these efforts have significantly contributed towards improving functionality of Service Oriented Architecture (SOA). However, there are number of issues yet to be resolved. Among them, one of the major challenges is the standardization...
Semantic Web Services discovery and composition: paths along workflows Web Services allow the composition of new services on top of existing, partial ones. Using standard languages, Semantic Web Services can provide the description of their input parameters and preconditions for execution, as well as the output and effects of their execution. The availability of such descriptions demand the investigation...
In the service collaboration field, there exists the need to combine two or more services together to fulfill a complex goal. Though service composition is an active research field, most of solutions are focused on Web services and lack of the consideration for business-level collaboration. In this paper we present a discovery architecture that supports business-level service composition. In our architecture,...
Web service chaining forms one of the basic operation during Web service composition. To decide whether services can be chained, semantic matching between the I/O is usually evaluated. In this paper we propose an approach considering possible adaptation of output data before it is consumed as input by other service. We also define the corresponding rules based on which it is evaluated if the chaining...
This paper proposes an automatic Web service composition method which considers both services input-output type compatibility and behavioral constraint compatibility based on Petri nets to raise the composition reliability. It presents a novel technique for discovering semantic relations between pre and post conditions of different services using their ontological descriptions. The technique takes...
This paper has proposed a method which implements the web service dynamic composition based on an annotated ontology. The capability parameters of the registered web services are used to annotate the domain ontology, when a request comes, only the related web service according to the annotated ontology will be matched or be composed. With the method, the efficiency can be improved significantly when...
At present, Web services are created and updated on the fly. It has already beyond the human ability to analysis them and generate the composition plan manually. It is a problem that composing existing Web services automatically and dynamically according to userspsila request. A number of approaches have been proposed to tackle that problem. Most of them are inspired by the researches in cross-enterprise...
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