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A. Malik, S. Dustdar:
"Dynamic Collaborations for Information Sharing Within and Across Virtual Teams";
Talk: 9th International Conference on Frontiers of Information Technology, FIT 2011, Islamabad, Pakistan; 12-19-2011 - 12-21-2011; in: "Proceedings of the 9th International Conference on Frontiers of Information Technology, FIT 2011", IEEE Computer Society, (2011), ISBN: 978-0-7695-4625-4; 206 - 211.

Dynamic teams created by different enterprises collaborate to achieve their mutual goals. User-based collaborations for a specific task, within and across teams, result in a new team represented as dynamic collaboration (c). These inter-team and intra-team collaborations are mostly temporary which are based on specific task or goal. Collaborations among different teams, within a team, or across teams can take different forms when some or all of the users belonging to
one or more teams collaborate for a common goal having diverse access control and sharing requirements imposed by themselves, their teams, or their parent enterprises. In such a dynamic environment, information sharing and privacy are critical issues for users, their teams and enterprises. We propose a dynamic sharing and privacy-aware model that supports enhanced sharing and preserves the privacy of users, their teams, and enterprises. We extend the widely used Role-
Based Access Control (RBAC) model with team and task entities in addition to sharing and privacy data elements. In this model, using context constraints and hybrid access control policy, a user can control what to share with whom in which context conditions. We present a Dynamic Sharing and Privacy-aware Role-Based Access Control (DySP-RBAC) model that extends the RBAC model for enhanced sharing
and privacy of information among collaborating users within
and across virtual teams.

http://dx.doi.org/10.1109/FIT.2011.45