8020 principles in software testing

80% of Software defects often exist in 20% of the software space.This principle tells us that if you want to make software testing effective, remember to visit its high-risk areas frequently ". There are many possibilities for discovering Software defects. This principle is of great significance for Software testers to improve testing efficiency and defect discovery rate. Smart testers will quickly find out more defects based on this principle, while stupid testers are still searching for them.

In another case,We review system analysis, system design, and system implementation to detect and avoid 80% of Software defects during testing.The subsequent system tests can help us identify 80% of the remaining defects, the final 5% of Software defects may be exposed only after the system is delivered and used for a long time. Because software testing can only detect as many Software defects as possible, but cannot discover all Software defects.

The 80-20 principles also reflect the automation of software testing,Practice has proved that 80% of Software defects can be discovered through manual testing, and 20% of Software defects can be achieved through automated testing.. Because the two are cross-cutting, about 5% of Software defects need to be discovered and corrected in other ways.