Soft test-security reliability and system performance evaluation

In general, this chapter mainly introduces some concepts, and these concepts are like a ing of things in life.

For example, the reliability and security of the system are like the health of a person. to judge whether a person's health is high or low is to check whether the person's health is normal (no fault.

In addition, data encryption, from information summarization to digital signature, is some of the methods that people are used to, but simply applies the concept to information technology.

Understand concepts and make some questions.