A service request description language
نویسندگان
چکیده
To meet the new requirements of growing computer networks the client-server model has to be improved by new concepts with encreased functionality. Service management in distributed systems is realized by a service trading concept. This paper presents a language given in Backus-Naur Form which enables specification of service requests. First, a matching criteria is specified as conditioned Boolean expression in order to evaluate appropriate service offers. Additionally, a selection criteria can be used to yield the most suitable service. To limit the scope of a search it is possible to specify policies and search constraints on service properties which restrict the search on particular trading objects. The Service Request Description Language presented here is related to the ANSAware trader to increase its functionality by giving means for service searching and selecting.
منابع مشابه
SOA Testing using Black, White and Gray Box Techniques
Web Services are the foundations of modern Service Oriented Architecture (SOA). Typical Web Services include message exchange between a consumer and a producer using SOAP request and responses over the ubiquitous HTTP protocol. A Web service producer advertises its services to potential consumers through Web Services Description Language (WSDL) – an XML file that contains details of available o...
متن کاملPossibilistic Petri nets as a basis for agent service description language
In the making of a service-oriented multiagents framework, two pivotal issues need to be addressed: agent service description language (ASDL) and its service matchmaking mechanism. ASDL provides a speci3cation of publishing and requesting services for agents, and matchmaking is the process of 3nding an appropriate service for a request through a medium. In this paper, a possibilistic Petri net-...
متن کاملOn-the-fly Construction of Web Services Compositions from Natural Language Requests
The introduction of Semantic Web techniques in Service-oriented Architectures enables explicit representation and reasoning about semantically rich descriptions of service operations. Those techniques hold promise for the automated discovery, selection, composition and binding of services. This paper describes an approach to derive formal specifications of Web Service compositions on the basis ...
متن کاملA Semi-Automatic Approach to Composite Web Services Discovery, Description and Invocation
With the popularity of the Web services technology, more and more software systems’ functionalities become available by being published and registered as Web services. Registered Web services need to be dynamically combined to form “composite services” when individual “simple services” fail to meet service requestors’ complex service needs. In this article, we propose a semi-automatic approach ...
متن کاملContributions à la description et la découverte de services web sémantiques. (Contributions to semantic web services description and discovery)
Researchs conducted around Web service description use more and more of semantic models to provide an automatically interpretable representation. However, we identified gaps in current approaches that generate semantic ambiguity and impertinence at Web service matching and discovery. To address these shortcomings we propose contributions about semantic Web service description and discovery. As ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1994