What Is the Difference Between 100% Inspection and Sampling Inspection?

A 100% inspection checks every unit for the features included in its scope, while sampling inspection checks a selected subset to support a lot decision.

Full-unit coverage does not mean every possible property has been tested; some tests are destructive or require laboratory conditions. Select the approach according to product risk, cost, and the relevant quality requirement. Define the inspected features and release rules before choosing the inspection method.