Explain how a designer decides which drawing type to use at each stage of developing a product, from first idea to manufacture. [7]

Assessment: Design & Technology: Product Design 9252 | Paper 1 Mock 01 | Technical, designing and making principles Subject: Design & Technology: Product Design - 9252

Question 1 Report

Explain how a designer decides which drawing type to use at each stage of developing a product, from first idea to manufacture. [7]

Answer Details

The appropriate drawing changes as the design moves from broad exploration to precise manufacture. Early methods should be quick and flexible; later methods must be exact and unambiguous.

  1. At the first-idea stage, use freehand sketches. They are fast and disposable, allowing many alternatives to be explored without committing significant time or cost. [2]
  2. As an idea develops, use annotated sketches to record proposed materials, sizes and the reasoning behind decisions. [1]
  3. To present a selected idea to a client, use a pictorial or rendered drawing. This communicates form, appearance and material more clearly than a technical drawing. [2]
  4. Use sectional and exploded views when working out or explaining internal construction and the way components assemble. [2]
  5. At manufacture, produce orthographic working drawings with dimensions and tolerances, because these provide the precise information needed to make and inspect the product. [2]

The judgement is that no drawing type is best throughout: the choice depends on whether the immediate purpose is exploring, explaining appearance, communicating construction or manufacturing accurately. Developed links across the stages are required for [6-7].

Read lesson note on Communication Of Design Ideas (OxfordAQA)
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