Apply systematic improvement strategies — and understand the mindset that turns good designs into great ones.
Learn — read and understand
Improvement is not fixing failure — it is relentless progress
Design improvement is a continuous pursuit of "better" even when the current version already works. The world's best designers are never satisfied with "good enough." They always ask: What is still the weakest point? What would make this 10% better? What would happen if we removed this part entirely?
Five improvement strategies used by professional designers
(1) Subtraction: remove unnecessary parts. (2) Substitution: replace a material or component with a better one. (3) Addition: add a feature that solves a remaining problem. (4) Rearrangement: change how parts are assembled. (5) Reversal: flip an assumption — what if the user interacts from the other side?
SCAMPER: a creativity tool for improvement
SCAMPER stands for: Substitute, Combine, Adapt, Modify/Magnify, Put to other use, Eliminate, Reverse/Rearrange. For each letter, ask: what if I [verb] this part or aspect of the design? SCAMPER is used by professional product designers and inventors worldwide.
Avoid 'change for change's sake'
Not every change is an improvement. Changes must be driven by evaluation data or user feedback — not by boredom or random preference. Every design change must answer: 'What specific problem does this change solve, and how will I measure whether it worked?'
Explore — real improvement examples with before/after
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Subtraction: fewer parts = simpler
V1 had 5 parts. V2 = 1 piece. Result: removed fragile joints → survived 3× more drop tests than V1.
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Substitution: better material
V1: cardboard walls collapsed at 200g. V2: foam core. Result: withstands 800g — 60% improvement in structural strength.
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Addition: solving remaining problems
V1: pencils still rolled. V2: added 5 dividers. Result: zero roll-outs in 20 user tests of V2.
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Rearrangement: better user flow
V1: opening faced away from user. V2: rotated 180°. Result: reduced arm extension by 15cm — 100% of users preferred V2.
Put the design improvement cycle in the correct order
Drag or tap a label, then drop/tap on a zone
Evaluate current version
Identify weakest criterion
Apply SCAMPER strategy
Build improved version
Step 1
Step 2
Step 3
Step 4
Quiz — design improvement, 5 questions
1What does SCAMPER stand for?
2The 'Subtraction' improvement strategy means…
3Why must design improvements be driven by evaluation data rather than random preference?
4What must a version log record for each design change?