Definition
A Pinocchio pretotype uses a non-working version of a product so people can act as if it works and reveal how they would use it.
Sometimes the fastest way to learn is to use something that does not work. A Pinocchio pretotype is not a prototype. It does not prove the product can function. It helps you learn whether the form, context, behaviour, and use case make sense before you build the real thing. The famous example is Jeff Hawkins carrying a wooden Palm Pilot in his pocket. It did not compute anything. It helped him learn whether the size, shape, and usage patterns made sense.
Leslie’s own Smart Beans style example works the same way. If you want to know whether a physical idea fits real life, use simple objects first. Paper on a watch, a block of wood in a pocket, a can of beans standing in for a smart speaker. The point is to expose the friction you cannot see in a meeting room.
When to use it
Use Pinocchio when the idea has a physical form, wearable context, in-home context, device interaction, packaging shape, or usage ritual.
What to measure
- Does the object fit into real life?
- Do people remember to use it?
- Where does it get annoying?
- What actions feel awkward?
- What features matter in context?
- Does the behaviour survive outside the workshop?
Worked example
- Palm Pilot wooden block.
- Paper watch face during gym workouts.
- Smart speaker simulated with everyday objects.
- Physical packaging or device form before electronics exist.
Common mistake
The mistake is to judge it by whether the fake object works. It is not meant to work. It is meant to reveal whether the imagined usage survives contact with real life.
Watch the training
Watch: Lesson 8: Pinocchio Pretotype
Try it
Make the simplest physical version of the idea and carry it, place it, wear it, or use it for a week. Test an idea free.