Neighbourhood-Trust Dependency Access Control for WFMS

WFMSs are widely used by modern business processes. But so far it is still a challenge to have a simple and effective access control mechanism for WFMSs. This paper contributes an effective and simply access control mechanism, called neighbourhood-trust dependency access control (NETDEPAL), for WFMSs. This new notion combines the workflow mechanism and RBAC into NETDEPAL for WFMSs. The secure access for WFMSs can be efficiently implemented by NETDEPAL from system dependency and task dependency via their neighbourhood relationships