Conduct formal technical review: At the end of each stage of software development, a formal technical review should be organized. Technicians should review software products in strict accordance with specifications and designs.

In most cases, review can effectively find defects and errors in software. National standards require developers to take specific measures such as review, document review, design review, audit and testing to control quality.

Control change:

In the stage of software development or maintenance, every change of software is in danger of introducing errors. If the code is modified, it may introduce potential errors; Modifying the data structure may make the software design inconsistent with the data; When modifying the software, the document is not accurate and timely, which is a side effect of maintenance.

Therefore, we must strictly control the modification and change of software. Controlling change is to directly improve the quality of software by formally applying for change, evaluating the characteristics of change, controlling the impact of change.

Baidu Encyclopedia-Software Quality Assurance