WS-Policy and Beyond: Application of OWL Defaults to Web Service Policies
نویسندگان
چکیده
Recently, there has been an increased amount of attention dedicated to WS-Policy it has become a W3C submission and a working group was formed to standardize the specification. In our previous work, we provided a mapping of WS-Policy to OWL-DL. In this paper, we continue that work by analyzing the operation of policy intersection (determining whether two web service policies are compatible). We show how this operation motivates the use of a non-monotonic extension of OWL in the form of OWL default rules. We discuss our prototype implementation of an OWL defaults reasoner based on Baader and Hollunder’s terminological defaults.
منابع مشابه
A procedure for Web Service Selection Using WS-Policy Semantic Matching
In general, Policy-based approaches play an important role in the management of web services, for instance, in the choice of semantic web service and quality of services (QoS) in particular. The present research work illustrates a procedure for the web service selection among functionality similar web services based on WS-Policy semantic matching. In this study, the procedure of WS-Policy publi...
متن کاملExpressing WS Policies in OWL
In this paper, we present two translations of the Web Service Policy Framework (WS-Policy) into OWL-DL. First, we provide an overview of existing web policy languages and a general idea of their expressivity. Then we provide a quick introduction to WS-Policy and we argue the benefits of using OWL and RDF to express web service policies. Lastly, we provide two translations from WS-Policy to OWL,...
متن کاملOn Extending WS-Policy with Specification of XML Web Service Semantics
Several languages for specification of various aspects of semantics, such as quality of service (QoS), of XML Web services have appeared recently. However, none of them is widely accepted by industry. On the other hand, WS-Policy (a general framework for the specification of policies for Web services) has strong industry support, but currently lacks detailed specification of ontological meaning...
متن کاملRepresenting Web Service Policies in OWL-DL
Recently, there have been a number of proposals for languages for expressing web service constraints and capabilities, with WSPolicy and WSPL leading the way. The proposed languages, although relatively inexpressive, suffer from a lack of formal semantics. In this paper, we provide a mapping of WS-Policy to the description logic fragment species of the Web Ontology Language (OWL-DL), and descri...
متن کاملA model for specification, composition and verification of access control policies and its application to web services
Despite significant advances in the access control domain, requirements of new computational environments like web services still raise new challenges. Lack of appropriate method for specification of access control policies (ACPs), composition, verification and analysis of them have all made the access control in the composition of web services a complicated problem. In this paper, a new indepe...
متن کامل