Prototyping and testing — Design, 14–17
A prototype is a quick, incomplete version used to learn before the final thing is expensive or difficult to change.
Idea
A prototype makes an idea tangible enough to question. It might be paper screens, cardboard, a 3D print or rough code; it does not need the final materials or polish. By trying it, designers can discover what works, what fails and what they misunderstood.
Why it exists
Ideas can feel convincing when they are only in someone’s head or in a polished drawing. Prototyping exists because real use exposes problems that discussion hides. Finding a flaw in paper or foam is usually cheaper, safer and less embarrassing than finding it after manufacture.
Worked example
A team designs a phone stand for a desk. First they fold card into a triangle and place a 200-gram phone on it; it tips forward. They widen the base and add a front lip, then test again with 200 grams and a charging cable. The second model stays upright and leaves the port clear.
Common trap
People often polish a prototype until it looks finished, then feel protective of it. That is reasonable: effort and appearance make an idea feel valuable. But a prototype is a question, not a trophy. Keep it quick enough to change, and test the risky part rather than decorating the safe part.
Outside school
Architects make building models, app teams make clickable screens, engineers test parts and film-makers use storyboards. Hospitals may prototype a new way to arrange equipment before changing a whole ward. In each case, a small model lets people learn before committing money, time or safety to the full version.
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