使用控制系统中属性更新的并发控制研究  

Study on the concurrency control of attributes update in usage control

作　　者：李钢[1] 李沛武[2] 胡海霞[1] 

机构地区：[1]南昌航空大学研究生学院,江西南昌330063 [2]南昌工程学院科研处,江西南昌330099

出　　处：《南昌工程学院学报》2008年第4期19-23,共5页Journal of Nanchang Institute of Technology

基　　金：江西省自然科学基金资助项目(0511062)

摘　　要：使用控制被称为下一代的访问控制方法,其模型UCONABC在许多关键技术方面还有待完善.通过对UCONABC模型的基本特征研究,特别是对属性特征的研究,针对多个使用过程同时发生时属性更新行为可能产生的数据不一致和并发执行问题,提出了基于两段锁的事务并发控制策略,并进一步用实例验证了该策略的可行性和有效性.Usage control is referred to as the next generation method of access control,whose UCONABC model needs perfecting in some key technologies, This paper studies the basic features of the UCONABc model, especially the attribute features. The concurrency control strategy based on two-phase locking is proposed to solve the problems of inconsistent data and concurrent execution which are caused by the attribute update during multi-usage procedures. Finally, the feasibility and validity of this strategy is confirmed by one example in solving the problems.

关 键 词：使用控制 属性更新 并发控制 事务 两段锁 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]