Abstract
In this paper, we propose a novel matching framework for Web service composition. The framework combines the concepts of Web service, context, and ontology. We adopt a broad definition of context for Web services, encompassing all information needed for enabling interactions between clients and providers. Context-based matching for Web services requires dealing with three major research thrusts: context categorization, modeling, and matching. We first propose an ontology-based categorization of contextual information in Web service environments. We then define a two-level mechanism for modeling Web service contexts. In the first level, service providers create context specifications using category-specific Web service languages and standards. In the second level, context specifications are enveloped by policies (called context policies) using WS-Policy standard. Finally, we present a peer-to-peer architecture for matching context policies. The architecture relies on a context matching engine, context policy assistants, and context community services. Community services implement rule-based techniques for comparing context policies.
Original language | English |
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Pages (from-to) | 5-37 |
Number of pages | 33 |
Journal | Distributed and Parallel Databases |
Volume | 21 |
Issue number | 1 |
DOIs | |
Publication status | Published - Feb 2007 |
Keywords
- Agent
- Context
- Matching
- Ontology
- Policy
- Web service composition
ASJC Scopus subject areas
- Software
- Information Systems
- Hardware and Architecture
- Information Systems and Management