现代通信业影响了人们的社会生活方式，并通过让人们可以获得信息、教育和娱乐拓宽了人们的视野。

The modern communication industry influences the way people live in society and broadens their horizons by allowing access to information, education and entertainment.

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您需要具体的信息以通过影响分析，来维护和扩展已存在的软件资源。

Detailed information is required to maintain and extend existing software assets, through impact analysis.

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掌握了这些信息之后，用户就可以决定要做哪些修改，还可以通过影响分析了解这些修改如何影响整个系统。

With this information the user then has the ability to decide what changes they want to make and create an impact analysis to see how this change will affect their whole system.

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