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Fuzzy Resource Allocation Mechanisms in Workflow Nets

The purpose of Workflow Management Systems is to execute Workflow processes. Workflow processes represent 
 
the sequence of activities that have to be executed within an organization to treat specific cases and to 
 
reach a well-defined goal. Therefore, it is to manage in the best possible way time and resources. The proposal 
 
of this work is to express in a more realistic way the resource allocation mechanisms when human behavior is 
 
considered in Workflow activities. In order to accomplish this, fuzzy sets delimited by possibility distributions 
 
will be associated with the Petri net models that represent human type resource allocation mechanisms. Additionally, 
 
the duration of activities that appear on the routes (control structure) of the Workflow process, will be 
 
represented by fuzzy time intervals produced through a kind of constraint propagation mechanism. New firing 
 
rules based on a joint possibility distribution will then be defined.