Rapid prototyping is the practice of quickly creating a simplified version of your product to test assumptions and gather feedback. The key insight: you can validate most ideas without writing a single line of code.
Prototyping methods range from low-fidelity (sketches, wireframes) to high-fidelity (clickable mockups, 3D-printed devices). The rule of thumb: use the lowest fidelity that answers your current question.
Prototyping Methods (low → high fidelity):
- Paper sketches and storyboards (minutes)
- Digital wireframes with Figma/Balsamiq (hours)
- Landing page + signup form (1 day)
- Wizard of Oz — human behind the curtain (days)
- Clickable prototype with Figma/InVision (days)
- 3D-printed physical prototype (weeks)
- Functional software MVP (weeks-months)
Challenge: Can you sketch your MVP user interface in 10 minutes? Set a timer and go!
Key Takeaways
- Use the lowest fidelity prototype that answers your current question.
- You can validate most ideas without writing code.
- Speed > perfection at the prototyping stage.
- Each prototype should test a specific assumption.