Preventing Illegal Information Flow Based on Role-Based Access Control Model
NBiS '08 Proceedings of the 2nd international conference on Network-Based Information Systems
A purpose-based synchronisation protocol of multiple transactions in multi-agent systems
International Journal of Business Intelligence and Data Mining
A legal information flow (LIF) scheduler based on role-based access control model
Computer Standards & Interfaces
Role-based scheduling and synchronization algorithms to prevent illegal information flow
NBiS'07 Proceedings of the 1st international conference on Network-based information systems
Role-based serializability for distributed object systems
DEXA'06 Proceedings of the 17th international conference on Database and Expert Systems Applications
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A role-based access control model is used to make a system secure. A role concept shows a job function in an enterprise. Traditional locking protocols and timestamp ordering schedulers are based on principles "first-comer-winner" and "timestamp order" to make multiple conflicting transactions serializable, respectively. In this paper, we discuss a concurrency control based on the significancy of roles assigned to transactions. We define a significantly dominant relation on roles. We discuss a role ordering (RO) scheduler based on the role concept. We evaluate the RO scheduler compared with the two-phase locking (2PL) protocol.