异构信息系统的不断增加，使各系统间的互操作性显得尤其必要。
The continuous increase of heterogeneous information systems makes the operability between them particularly necessary.
为了在异构信息系统之间，能够有效地共享资源，就需要在异构系统间实现安全策略的协同。
It was necessary to coordinate security policies between interconnected enterprises. By this way the information could be Shared effectively.
本质上属松散一致性的数据耦合机制，可在任何分布式信息系统或者大型异构信息系统之间共享资源。
The DISP, which essentially belongs to Loose Consistency Data Couple Mechanism, can be used in both distributed information systems and large heterogenous information systems.
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