This draft paper is written as part of a master course in Semantic Web, collecting key issues around composition of semantic web services, from the point of view of the representation of formal execution semantics and conceptual models based on marked Petri nets.
Abstract
This paper reviews the needs of a collaborative web environment to model visual interactive marked Petri nets, focusing on the issues around the definition of semantic web services interaction languages and modeling of instance conversations derived from them. So that, we start describing the traditional requirements for those languages and discussing the background of graph visualization and interaction concerns. Once reviewed all key issues among those broad areas we present our suggested approach, describing briefly a proof of concept prototype and introducing our future work around graph structured semantic information related with conversation-oriented languages for semantic web services composition and mediation.
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