01Decision question, assumption, option set, and fidelity
Provide a favored solution, a vague request to validate it, mixed evidence, several possible uncertainties, limited time and a stakeholder asking for a high-fidelity demo. Ask what should be prototyped first and why.
Confirm: The person identifies the decision and owner; distinguishes problem evidence, proposed solution, hypothesis, assumption, constraint and unknown; ranks uncertainty by consequence, evidence gap, cost and reversibility; states what result would support change or reject the direction; keeps materially different options including no build; chooses the lowest fidelity capable of producing credible evidence; explains when a sketch, storyboard, role-play, content artifact, clickable flow, coded interaction, simulation, technical spike or production-shaped slice is required; bounds scenario, audience, states, data and environment; marks omissions and false realism; estimates learning cost rather than presentation value; and refuses polish that cannot change the decision.
02Whole journey, content, interaction, inclusion, and failure behavior
Provide a cross-channel task with several user groups, support staff, difficult content, permission differences, narrow and zoomed views, interrupted sessions, slow responses, error paths and an inaccessible preferred prototyping tool. Ask for one testable journey.
Confirm: The person identifies which end-to-end steps and channels matter to the question; includes setup, entry, orientation, content, state, actions, feedback, wait, cancellation, error, recovery, completion, support and return where relevant; uses realistic language and content length; represents permissions and consequences rather than only screens; includes disabled people, low digital confidence, language, device, connectivity and assisted paths with research owners; chooses media participants can perceive and operate; distinguishes conceptual inclusion evidence from production accessibility conformance; uses established patterns when their assumptions fit; prototypes alternatives rather than cosmetic variants; exposes dead ends and operational seams; and keeps participant safety, consent and dignity above prototype convenience.
03Technical feasibility, data, integration, security, privacy, and operations
Provide a convincing interface backed by fake responses, a risky external integration, sensitive information, uncertain identity and authorization, latency and scale questions, an operational handoff and pressure to reuse the prototype code. Ask what technical evidence is missing.
Confirm: The person separates visual behavior, simulated behavior, contract evidence and production behavior; identifies data shape, source authority, freshness, identity, permissions, state transitions, integration protocols, error semantics, timing, concurrency, performance, observability, support and recovery that affect the decision; pairs with engineers and specialists on focused spikes or walking skeletons; uses synthetic or approved minimal data; protects prototype access; excludes production credentials and secrets; labels mocked services and bypassed controls; tests boundaries and failure conditions instead of only a happy response; records environment and versions; distinguishes local feasibility from system viability and operability; subjects any candidate reusable code to normal architecture, secure-development, accessibility, quality and release gates; and assumes throwaway code will be thrown away unless accountable owners accept a deliberate rebuild path.
04Research readiness, observation, iteration, decision, and handoff
Provide a prototype that works on its maker's laptop, unclear research objectives, unavailable participants, leading tasks, stakeholder observers, conflicting session notes, a successful demo, a rejected concept and a team ready to build. Ask what evidence can be carried forward.
Confirm: The person aligns the artifact to research questions and tasks without leading toward the preferred answer; checks the participant environment, access needs, devices, browsers, connectivity, seed state and reset path; rehearses the session; keeps the prototype stable enough to test and easy enough to change; distinguishes observation, participant statement, researcher finding, technical result, team interpretation and product decision; records versions and exposure conditions; avoids counting preference or task completion without context as validation; shows conflicting and disconfirming evidence; changes or discards the artifact promptly; maps each conclusion to its source and limitation; identifies what remains unknown; preserves only useful learning and assets; specifies what production teams must redesign rebuild test secure operate and accept; and demonstrates that another person can repeat the test or explain why the direction stopped.