Sistemas de workflow : analise da area e proposta de modelo

AUTOR(ES)
DATA DE PUBLICAÇÃO

1996

RESUMO

A special category of collaborative systems, the Workflow Systems, are discussed. Such systems can be defined as "systems that help organizations to specify, execute, monitor, and coordinate the flow of work items within a distributed office environment" [Bul92]. We identify basic structural and semantic issues in such systems, and show that improvements can be made over current systems by offering a better coverage of both aspects. We then propose a new conceptual model that tries to fill the detected gaps both by providing a stronger, more expressive specification language and a more comprehensive execution environment. In particular, the following issues are covered: Basic actions and synchronization elements are proposed for asynchronous events, batch and replicated activities. We propose a strongly data-oriented execution environment, where both application and system objects (such as specifications) area treated in a uniform way. We present a broader solution to the agent scheduling problem, that allows one to use different allocation strategies, such as load-balancing, round robin and so on, and that lets many agents to be associated to collective activities. Collective activities give rise to special communication needs, that are treated in the broader awareness diffusion context.

ASSUNTO(S)

politica de escritorio - automação modelagem sistema de recuperação da informação

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