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What are the four stages of the complete life cycle of a system's quality observation?

The complete life cycle of a system's quality observation , Which four stages can be divided into ?




Take the answer 1:

The development phase : Focus on the quality of the code , For example, static code scanning and dependency checking will find potential code defects and security risks , Therefore, we can count the defect rate of thousand lines of code or the proportion of serious defects , So as to measure whether the code quality of a system meets the requirements Testing phase : At this stage, we need to focus on the quality of the test , For example, test coverage , And the failure rate of test cases Gray scale verification : We need to pay attention to the stability of the system and the differences between different versions , Therefore, there will be a series of business indicators , for example HTTP Error The proportion , Comparison of delay and other indicators of different versions Run online : At this time, we need to focus on the stability of the system and the stability of the business , Therefore, various online performance indicators 、 Business indicators 、 Application log 、Trace And other data are very important


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