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The idea behind mashups is to provide a mechanism that allows for more or less spontaneous combination of existing Web applications. Users shall thus be enabled to combine data and services according to their needs.However, existing mashup frameworks require some programming knowledge, hence are not suitable for non-expert users. In this paper, we present a system that builds on existing semantic...
Web services provide a complete new way of the loosely coupled service-oriented architecture and facilitate the process of application integration by encapsulating information and existing softwares. To exploit the true potential of Web services, it is vital to develop methodologies and tools for automatic Web service composition. Numerous Web service composition description languages have been developed...
In this paper, we introduce an agent planner architecture which has the potential to execute composite models defined using various business process languages by means of a generic workflow model. By having a generic workflow model within an agent infrastructure, different composite process models as well as various agent programming paradigms including different planning languages can be executed...
This paper proposes a new method for the automatic composition of semantic Web services. The proposed method consists in constructing a graph and then searching for a sub-graph of this graph, which will represent a candidate composition solution. First, the method constructs a directed acyclic graph, which represents the functional semantics of the Web services as well as the semantic dependency between...
The process of semantic Web service composition arranges several Web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes a framework to automatic semantic Web service composition. Its advantage is that a huge amount of computation is performed during preprocessing and the composition approach is designed to exploit the parallel execution...
Web service composition has become a key area of research in the services oriented architecture (SOA) community. The idea of using AI planner to compose Web services has been suggested in a lot of papers. Since the different application domains and the constraint of precondition that AI planners have, none of the existing planner can solve this problem, perfectly. In this paper, we present an algorithm...
One of the most challenging issues of service-centric software engineering is the automatic composition of services. In academia, most approaches reduce the service composition problem to the AI planning problem and generate a plan for the user's request from scratch. However in the real world there may be a large amount of same or similar requests, so how to adapt the existing solutions for the past...
The paradigm of the composition of Web services to recognize this day considerable interest in Web technology in general and specifically distributed systems and/or distributed applications. The service-oriented architecture (SOA) have profitable B2B solutions, making best use of services already available on the Net. Existing work on the composition of dynamic Web services have shown that the description...
In order to better make an agreement on both the discovery results of Semantic Web services and the intentions of the service requester, advance the accurate rate of service discovery, and improve the automation performance in service discovery and selection. We add the context knowledge of service provider and requester to service representation, and employ the planning method to achieve the understanding...
This paper presents a novel approach for semantic Web service composition based on the formalism of fluent calculus. We show how the planning capabilities of the fluent calculus can be used to automatically generate an abstract composition model. For describing Web service capabilities we have used an OWL-S ontology. Based on the OWL-S ontology semantics, we encode the Web service description in the...
Web services are the preferred standards-based way to realize service oriented architecture (SOA) computing. A problem that has become one of the recent critical issues is automated composition of Web services. A number of approaches have been proposed to resolve the problem. However, discovery and composition of Web services have been neglected by majority of those approaches. In this paper, we propose...
The objective of the semantic Web is to develop better ways to document semantics and extract knowledge from the Web, making the Web easier to process by both machines and humans. Semantics Web services are more progressive and potential to increase semantically the interoperability between service partners than traditional business services.However, at present,Web Service and Semantic Web are primarily...
Many automatic Web service composition algorithms based on AI planning techniques have been proposed. In this paper, we model the semantic Web service composition problem using a kind of simplified planning graph. It provides a unique search space, and can find a solution in polynomial time, but with possible redundant Web services.
The paradigm of service-oriented computing (SOC) introduces emerging concepts for distributed- and e-business processing enabling the sharing and reuse of service-centric capabilities. The underpinning for an organization's use of SOC techniques is the ability to discover and compose Web services. Leading industry approaches rely heavily on syntactical approaches for managing service-based business...
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