An enhancement of the Role-Based Access Control model to facilitate information access management in context of team collaboration and workflow

► We have enhanced RBAC for information access management in collaborative processes. ► New model incorporates universal constraint, workflow context and access delegation. ► Bridging entities and contributing attributes support access management in teamwork. ► Domain ontologies drive implementation of the enhanced RBAC in specific application. ► Enhanced RBAC is successfully applied to coordinate clinical education programs.