Research on Usage Control Model in Work Flow
With the Work Flow (WF) applies in the modern system on a large scale, tasks of access control management becomes more and more complex among the modern information system which also advances new requirements. This paper uses the task as core and adopts Usage Control (UCON) model to solve the problems of Access Control in WF, and advances the Usage Control in WF (UCON_WF) Model. So the paper mainly studies the 16 core UCON_WF models and gives logical representations of the 16 model rules.