【摘要】 为满足协作应用系统对用户操作的响应性和协作应用参与者的动态性要求 ,提出混合式的协作共享对象模型 ,集中的对象注册器协助动态管理共享对象组状态信息 ,复制式的共享对象副本将按快速串行化的事务处理方式执行 着重介绍了共享对象新的乐观并发控制和一致性维护技术 ,特别是将操作位置转换方法结合到复合对象的两阶段提交算法中 ,提高了用户操作的响应性 ;对象组采用动态管理 ,满足了协作参与者的动态性要求更多还原

【Abstract】 The hybrid model is introduced to enhance the response speed of users’ operations in dynamic collaboration The centralized object register helps to maintain the state of shared object groups, while the replicated shared objects are executed with optimistic serialized transaction handling The new optimistic concurrency control and consistency maintenance methods are applied Transformation of operational position is integrated into the two phase commitment in the composite shared objects The replicated object groups are dynamically maintained and the requirement for the dynamic collaboration establishment is satisfied更多还原