Um modelo de definição de processos para sistemas de workflow flexiveis

AUTOR(ES)

Fabio de Lima Bezerra

DATA DE PUBLICAÇÃO

2003

RESUMO

This work presents a new model of process definition in workfiow systems, the PDBC model. We also present a prototype of a workfiow system which implements the PDBC model, the Thcupi server. The proposal of this new model is to allow fiexibility in workfiow systems. For this, we will use what we call partial workfiow, which is a partially defined workfiow whose complete definition is carried through during the execution of workfiow. Partial Workfiow is defined as a set of constraints and activities. Moreover, another way for a workfiow system to get fiexibility is through an exception handling mechanism. Tn this work we consider such mechanism through the use of overriden constraints, that is, constraints that can be violated in determined circumstances. For this we present the WRBAC, a model of access control for workfiow systems, used to provi de an adequate mechanism of violation of the overriden constraints used in the definition of a workfiow

ASSUNTO(S)

fluxo de trabalho modelagem grupos de trabalho

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