prototyping-when-and-what

Determine UX prototyping fidelity by aligning the fidelity level—sketch, mockup, clickable, code, or production beta—directly to the specific design question being answered. This approach ensures teams learn efficiently without over-investing in unnecessary detail.

Stop prototyping when explicit stopping criteria are met and a “good enough to ship” framing is established. Defining these boundaries early prevents endless iteration, reduces stakeholder confusion, and allows the team to transition smoothly into implementation.

Choose what to prototype by targeting risky assumptions, disputed team decisions, and high-investment choices. Focusing prototyping efforts on these critical areas during product planning resolves stakeholder disagreements and validates uncertain concepts before committing resources.

Communicate prototype scope to stakeholders by clearly labeling the fidelity level, explicitly naming what is not built, and setting precise timeline expectations. This framing reduces misinterpretation and manages stakeholder feedback effectively.

Common prototyping patterns include spike + commit, test-then-design, prototype-then-spec, and continuous prototyping. Selecting the right pattern provides proven approaches to structure design phases, validate unknowns, and transition into implementation.