TY - JOUR AU - Enokido, Tomoya AB - A Role-Based Access Control (RBAC) model is used to make a system secure. In addition to keeping systems secure, objects have to be consistent in the presence of multiple transactions. Traditional locking protocols and timestamp ordering schedulers are based on 'first-comer-winner' and 'timestamp order' principles to make multiple conflicting transactions serialisable, respectively. In this paper, we discuss concurrency control algorithms based on the significance of roles. We discuss a Role Ordering (RO) scheduler so that multiple conflicting transactions are serialisable in a significant dominant relation of roles. We evaluate the RO scheduler as compared with the Two-Phase Locking (2PL) protocol. TI - Concurrency control based on role concept JF - International Journal of High Performance Computing and Networking DA - 2007-01-01 UR - https://www.deepdyve.com/lp/inderscience-publishers/concurrency-control-based-on-role-concept-rIbC0Q3y3t SP - 75 EP - 83 VL - 5 IS - 1 DP - DeepDyve ER -