The national security departments regulate on the security of important information system differently based on the confidentiality.

根据国家相关部门的要求，重要信息系统的安全保障需要实施等级保护的原则。

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This important information is needed to drive the design of your system, so don't forget to model it in your use cases.

这些重要的信息对于驱动系统的设计来说很有必要，因此不要忘记在用例中对它们建模。

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It is important that you develop an understanding of the domain outside the information system perspective.

您需要从信息系统之外的角度来理解这个域，这一点是很重要的。

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She developed a mobile phone-based system that permits people to share important information throughout the Habla network.

VOA: special.2011.03.02

"It has collapsed because of the conscious work of new generation of opposition inside which worked for two decades on building up an alternative system of information, knowing that's the most important,".

VOA: standard.2009.11.03

"I think they were very careful to keep design information, very important information in Japan, out of reach of our system as much as possible, " he said.

CNN: STORY HIGHLIGHTS

Yet as UAV technology improves they are set to become an even more important part of security and military operations -- part of a system that gathers and relays information to other drones, ground control, manned aircraft and satellites.

CNN: Doing military's dangerous, dull and dirty work