1.3.3.2a - Design mix

Analyse function, aesthetics and cost or economic manufacture in the design mix.

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

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

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

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