Leveraging UML for Access Control Engineering in a Collaboration on Duty and Adaptive Workflow Model that Extends NIST RBAC

Abstract

To facilitate collaboration in emerging domains such as the Patient-Centered Medical Home (PCMH), the authors' prior work extended the NIST Role-Based Access Control (RBAC) model to yield a formal Collaboration on Duty and Adaptive Workflow (CoD/AWF) model. The next logical step is to place this work into the context of an integrated software process for security engineering from design through enforcement. Towards this goal, the authors promote a secure software engineering process that leverages an extended Unified Modeling Language (UML) to visualize CoD/AWF policies to achieve a solution that separates concerns while still providing the means to securely engineer dynamic collaborations for applications such as the PCMH.