By capturing and saving this complexity information, you can create a history of changes and begin to manage based on trends.

通过获取并保存复杂性信息，您就可以创建变更的历史，并开始根据趋势进行管理了。

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Along with the increasing of information quantity and complexity, the management system that based on the database technology couldn't satisfy people.

随着信息量的逐渐增大和所需信息复杂程度的增加，这种以数据库技术为基础的管理系统已经不能满足人们对信息的需要。

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This paper discusses on the problem of information security from message level, and introduces emphatically information theory based cryptology and complexity theory based cryptology.

文章从消息层次上讨论了信息安全问题，重点介绍了信息理论密码学与复杂性理论密码学。

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