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POESIA: An ontological workflow approach for composing Web services in agriculture
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POESIA: An ontological workflow approach for composing Web services in agriculture Renato Fileto1, 3  , Ling Liu2, Calton Pu2, Eduardo Delgado Assad3 and Claudia Bauzer Medeiros1 | (1) | Institute of Computing, University of Campinas, Caixa Postal 6176, SP, 13081-970 Campinas, Brazil |
| (2) | College of Computing, Georgia Institute of Technology, 801 Atlantic Drive, GA, 30332-0280 Atlanta, USA |
| (3) | Embrapa - Brazilian Agricultural Research Corporation, Av. Dr. Andre Torsello, 209, SP, 13083-886 Campinas, Brazil |
Abstract. This paper describes the POESIA approach to systematic composition of Web services. This pragmatic approach is strongly centered in the use of domain-specific multidimensional ontologies. Inspired by applications needs and founded on ontologies, workflows, and activity models, POESIA provides well-defined operations (aggregation, specialization, and instantiation) to support the composition of Web services. POESIA complements current proposals for Web services definition and composition by providing a higher degree of abstraction with verifiable consistency properties. We illustrate the POESIA approach using a concrete application scenario in agroenvironmental planning. Keywords: Semantic Web - Data integration - Semantics of data and processes - Composition of Web services - Ontologies Received: 15 December 2002, Accepted: 16 April 2003, Published online: 30 September 2003Renato Fileto: fileto@ic.unicamp.br
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