Those who try to prove everything at once often prove nothing. Prototype development is about naming uncertainties and eliminating them systematically — sometimes with a rough flow, sometimes with pixel-perfect screens. It is like chess: not every piece must move at once, but every move must be deliberate.
Why you should experience first and build later
Experience reveals friction that documents hide
Real interaction sharpens copy and order
Buy-in grows faster around something tangible than around a memo
Proof of concept versus prototype
A proof of concept (PoC) demonstrates technical feasibility: can it be done, does the technology work, is the integration possible. A prototype simulates the user experience: this is how it feels, how you navigate, these are the states. Both are valuable but answer different questions. In TRL terms a PoC is usually around TRL 3, while prototypes move towards TRL 4-6 — first in lab scale, then in relevant and test environments.
The power of variants
What happens if you shorten the call to action? What if you place filter options below the search bar rather than above it? By prototyping and testing two variants, you see the effect without endless debate.
Realistic data, realistic reactions
A prototype with domain-specific language and believable datasets (synthetic if necessary) triggers better feedback.