The Official 5-Day Design Sprint
Thursday: Prototype

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3. Build the prototype

Ready, set, build!
As you build the prototype, you’ll want to adopt the prototype mindset, build to a Goldilocks quality, and then stitch it all together.

Prototype mindset

Building a facade may be uncomfortable for you and your team. You’ll need a temporary change of philosophy, which we call the “prototype mindset”:
You can prototype anything.
Prototypes are disposable.
Build just enough to learn, but not more.
The prototype must appear real. (p. 168)

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Goldilocks quality

The distinction between feedback and reaction is crucial. You want to create a prototype with just enough quality to evoke honest reactions from customers. (p. 170)
If the quality is too low, people won’t believe the prototype is a real product. If the quality is too high, you’ll be working all night and you won’t finish. You need Goldilocks quality. Not too high, not too low, but just right.
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Stitch it together

As individual sections of the prototype near completion, the
moves in. It’s the Stitcher’s job to make the prototype consistent from beginning to end—and ensure that every step is as realistic as possible.

Add your finished prototype links here 👇


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