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A Stochastic-Petri-Net-Based Model for Ontology-Based Service Compositions

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4 Author(s)
Yunni Xia ; Sch. of Comput., Chongqing Univ., Chongqing, China ; Gang Dai ; Fangfang Tang ; Qingsheng Zhu

OWL-S, one of the most significant Semantic web service ontologies proposed to date, provides Web Service providers with a core ontological framework and guidelines for describing the properties and capabilities of their web Services in unambiguous, computer interpretable form. In this paper, we propose a probabilistic model for OWL-S processes, employing the Non-markovian stochastic Petri net(NMSPN) as the intermediate representation. A set of translation rules is defined for constructs and activities of OWL-S so that processes specified in OWL-S can be translated into NMSPN. Based on the NMSPN representation, analytical methods for QoS analysis can be designed.

Published in:

Theoretical Aspects of Software Engineering (TASE), 2011 Fifth International Symposium on

Date of Conference:

29-31 Aug. 2011