2.3.4.4a - Quality methods

Compare quality control, quality assurance and quality circles.

Use a - quality methods to connect the rule to the data and decision in the question.

This matters because a - quality methods determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply a - quality methods to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: a - Quality methods is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.