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A Multi-Level Framework for Validation of Ontology-Driven and Community-Based Web Services Composition
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Author(s): Nacéra Bennacer (SUPELEC Systems Sciences (E3S), France) and Guy Vidal-Naquet (SUPELEC Systems Sciences (E3S), France)
Copyright: 2012
Volume: 3
Issue: 1
Pages: 15
Source title:
International Journal of Systems and Service-Oriented Engineering (IJSSOE)
Editor(s)-in-Chief: Stephen J.H. Yang (National Central University, Taiwan), Ibrahim Kushchu (Mobile Government Consortium International, UK), Wendy W. Y. Hui (University of Nottingham at Ningbo), Minhong Wang (The University of Hong Kong), Lei Chen (Hong Kong University of Science and Technology), Christer Carlsson (Åbo Akademi University), Qing Li (City University of Hong Kong), J. Leon Zhao (University of Arizona), P. Radha Krishna (Center for Business Intelligence), Huiye Ma (Centrum voor Wiskunde en Informatica), Dumitru Roman (DERI Innsbruck), Hua Hu, S. C. Cheung (Hong Kong University of Science and Technology), Edward Hung (Hong Kong Polytechnic University), Fu-ren Lin (National Tsing-hua University), Patrick C.K. Hung (University of Ontario Institute of Technology), ZongWei Luo (Hong Kong University), Yuqing Sun (Shandong University), Liu Wenyin (City University of Hong Kong), Zakaria Maamar (Zayed University), Jiming Liu (Hong Kong Baptist University), Hide Sasaki (The Chinese University of Hong Kong), Chengfei Liu (Swinburne University of Technology), Laor Boongasame (Bangkok University), Thomas Y. Kwok (IBM T.J.Watson Research Center), Manuel Mazzara (Newcastle University), Samuel P. M. Choi (The Open University of Hong Kong), Ka-man Lam (Hong Kong Baptist University), Jen-Yao Chung (IBM Research), Liya Ding (Macau University of Science and Technology), Marijn Janssen (Delft University of Technology), Chi-hung Chi (Tsing Hua University), Eleanna Kafeza (Athens University of Economics and Business), William Cheung (Hong Kong Baptist University), Xiaohui Zhao (Eindhoven University of Technology), Irene Kafeza (Irene Law Office), Yunjun Gao (Singapore Management University), Jianping Wang (City University of Hong Kong), Yi Zhuang (Zhejiang Gongshang University), An Liu (CityU-USTC Advanced Research Institute), Ho-fung Leung (The Chinese University of Hong Kong), Jerry Fjermestad (New Jersey Institute of Technology), Kwei-Jay Lin (University of California), Raymond Wong (National ICT), Haiyang Hu (Hangzhou Dianzi University), Wai-Wa Fung (Information Security and Forensics Society), Archim Karduck (Furtwangen University), Lucas Hui (University of Hong Kong), Benjamin Yen (The University of Hong Kong), Shiping Chen (CSIRO ICT, Australia), Vladimir Tosic (Managing Complexity Research Group - Sydney (ATP), NICTA), Jian Yang (Macquaire University), Vilas Wuwongse (Asian Institute of Technology), Raymond Y.K. Lau (City University of Hong Kong), Kuo-Ming Chao (Coventry University) and Dickson K.W. Chiu (Dickson Computer Systems, Hong Kong)
DOI: 10.4018/jssoe.2012010104
ISSN: 1947-3052
EISSN: 1947-3060
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Abstract
This paper proposes an Ontology-driven and Community-based Web Services (OCWS) framework which aims at automating discovery, composition and execution of web services. The purpose is to validate and to execute a user’s request built from the composition of a set of OCWS descriptions and a set of user constraints. The defined framework separates clearly the OCWS external descriptions from internal realistic implementations of e-services. It identifies three levels: the knowledge level, the community level and e-services level and uses different participant agents deployed in a distributed architecture. First, the reasoner agent uses a description logic extended for actions in order to reason about: (i) consistency of the pre-conditions and post-conditions of OCWS descriptions and the user constraints with ontologies semantics, (ii) consistency of the workflow matching assertions and the execution dependency graph. Then the execution plan model is generated automatically to be run by the composer agents using the dynamic execution plan algorithm (DEPA), according to the workflow matching and the established execution order. The community composer agents invoke the appropriate e-services and ensure that the non functional constraints are satisfied. DEPA algorithm works dynamically without a priori information about e-services states and has interesting properties such as taking into account the non-determinism of e-services and reducing the search space.
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