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Annotation
Short written notes placed next to a drawing that name materials, sizes, construction methods and the benefit to the user, so the drawing can be read without you there to explain it.
Design specification
A numbered list of measurable requirements the final product must meet, each one traced back to a finding from your research.
Divergent thinking
Deliberately producing many different possible answers to one design problem before judging any of them.
Evaluation matrix
A table that scores every design idea against every specification point, so the strongest idea can be chosen from evidence rather than from preference.
Success criteria
The set of tests, each with a target number or a pass or fail outcome, that you will run on the finished product to prove it meets the specification.
Working drawing
A dimensioned, to scale drawing carrying every size, material and joint needed for someone else to build the product without asking you a single question.