3-Level service composition and cashew: a model for orchestration and choreography in semantic web services

Authors:
Barry Norton;Carlos Pedrinaci
Affiliations:
Knowledge Media Institute, Centre for Research in Computing, Open University, Milton Keynes, UK;Knowledge Media Institute, Centre for Research in Computing, Open University, Milton Keynes, UK
Venue:
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part I
Year:
2006

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Abstract

There are two types of behavioural model in the WSMO semantic description of services: an orchestration and a choreography, together called the interface While an orchestration defines a service's behaviour as a composition of existing parts, a choreography is intended to document the conversation of messages exchanged with a single client In this paper we present a three-level model for behavioural descriptions, and how the Cashew workflow model fits into this, building on existing work in, and establishing connections with, semantic web services, workflow, and software engineering design.