3.3.1.4a - PESTLE

Apply PESTLE analysis to external influences.

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

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

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

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