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Zero‑Dev User Interview Kit: Turn 10 Conversations into a Build‑Ready PRD

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ZERO‑DEV USER INTERVIEW KIT: TURN 10 CONVERSATIONS INTO A BUILD‑READY PRD

Market ResearchAugust 31, 20265 min read1,001 words

If you’re a founder, indie builder, or product operator without an analytics backlog or dev time to spare, this kit turns ten non‑technical user interviews into a build‑ready PRD. You’ll get a copy‑ready interview script, three rapid note templates, an affinity‑mapping microflow for a 90‑minute synthesis workshop, and a deterministic PRD generator that produces prioritized opportunities, acceptance criteria, and sample microcheckout tests—no instrumentation required.

zero-dev-user-interview-kituser interview scriptaffinity mappingPRD templateproduct discoveryinterview note templatesprioritization

Section 1

1) Interview script: ask for stories, not features

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The point of ten focused interviews is to surface patterns, not polish prototypes. Use a short, reproducible script that centers recent behavior, context, and tradeoffs. Start with a 60–90 second warmup, then spend most of the time on micro‑stories: “Tell me about the last time you tried to [job]. What happened step by step?”

Keep questions non‑leading and avoid solution language. Record the interview (with permission) and capture three quick artifacts per call: a 1‑line problem statement, one verbatim pain quote, and one outcome metric the user cares about. These minimal artifacts make downstream synthesis fast and objective.

  • Warmup (1–2 mins): role, context, last time.
  • Core storytelling prompt (10–12 mins): step‑by‑step recent experience.
  • Clarify tradeoffs (5 mins): what they gave up or tolerated.
  • Close (1–2 mins): ask about frequency and alternatives.

Section 2

2) Rapid note templates: three slices that scale

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For consistency across ten calls, capture three standardized note slices: (A) Problem snapshot: one sentence (user, situation, pain), (B) Evidence: one verbatim quote + observable behavior, (C) Desired outcome: the measurable result the user would call success. Use a single line for each slice so you can later move them into affinity groups without editing.

A one‑line problem snapshot normalizes disparate language into comparable units. The evidence slice preserves fidelity for stakeholder debates. The desired outcome slice is the seed for acceptance criteria and microtests in your PRD generator.

  • Problem snapshot: “When [situation], user struggles with [pain].”
  • Evidence: verbatim quote + what they actually did.
  • Desired outcome: how the user would measure success.

Section 3

3) Affinity‑mapping microflow: 90 minutes from notes to clusters

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Run a short, high‑focus synthesis session the day after interviews while memories are fresh. Use physical sticky notes or a digital board. Goal: move the 30 one‑line problem snapshots (ten interviews × three slices) into clusters that represent repeatable opportunities.

Microflow: 20 minutes — silent sort (everyone moves notes), 30 minutes — name and refine clusters, 20 minutes — map cluster to user outcomes, 20 minutes — rapid vote for impact & confidence. The cluster names become candidate feature areas; the mapped outcomes feed acceptance criteria. This condensed process borrows from classic affinity methods so teams reach shared language fast.

  • 20m silent sort: fast pattern recognition without discussion.
  • 30m cluster naming: converge on labels and definitions.
  • 20m outcomes mapping: attach desired outcomes to each cluster.
  • 20m voting: use dot votes or ICE-style scoring to highlight top clusters.

Section 4

4) PRD generator: deterministic outputs from interview evidence

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Transform the top 3–5 clusters into PRD items by filling a short template for each cluster: context (user segment + linked evidence lines), problem statement, prioritized user acceptance criteria (from desired outcome slices), a sample microcheckout test, and a rough priority score (Impact × Confidence × Ease). This keeps your PRD testable and buildable without speculative metrics.

Microcheckout tests are simple pass/fail checks any small engineering team can implement: e.g., “User can complete task X in ≤3 clicks and reports the measured outcome Y in the success prompt.” Each acceptance criterion should map to one microtest and include the linked verbatim evidence that justifies it—so the team knows what user behavior the feature must change.

  • PRD item fields: owner, hypothesis, evidence links, acceptance criteria, microtest, priority score.
  • Acceptance criteria derive directly from user stated outcomes—no analytics required.
  • Microcheckout test example: a 3‑step flow + success prompt that validates behavior change.

Section 5

5) Prioritization and a lightweight rollout plan

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Use a simple ICE (Impact, Confidence, Ease) or cost‑value approach to order PRD items. Impact maps to how many interview snapshots and outcome slices a cluster addresses; Confidence comes from the quality of evidence and consistency across interviews; Ease is a rough dev estimate. This keeps prioritization tied to interview signal rather than gut.

For each prioritized item, include two rollout milestones in the PRD: (A) microcheckout validation (small, testable experiment) and (B) a 30‑day check‑in that captures qualitative feedback from new users. If the microcheckout test passes, move to a scoped build; if not, iterate on the hypothesis with two more interviews.

  • Prioritize by ICE = Impact (#evidence points) × Confidence (consistency) × Ease (T‑shirt size).
  • Every P0 must have a passing microcheckout test before a full build.
  • If a microtest fails, retest with two more interviews rather than speculating.

FAQ

Common follow-up questions

Why ten interviews? Is that enough?

Ten interviews balance speed and pattern detection. With a reproducible script and consistent note slices, ten calls surface repeated problems and outcomes you can cluster reliably. If clusters are thin or evidence inconsistent, repeat another 5–10 calls.

Do I need analytics or tracking to use this kit?

No. The kit is explicitly designed to be analytics‑free: acceptance criteria and microtests derive from user‑stated outcomes and observable behavior in interviews. Use microcheckout tests to validate behavior change before instrumentation.

How do I turn interview evidence into testable acceptance criteria?

Extract the user's desired outcome phrase and translate it into an observable, pass/fail statement. Example: user says “I want checkout to take less time.” Acceptance criterion: “User completes checkout in ≤3 clicks and reports confirmation in success prompt.” Link the original verbatim quote in the PRD for traceability.

Can a solo founder run the full process?

Yes. A solo founder can run interviews, use the one‑line note slices, and do the affinity mapping by time‑boxing silent sorts and naming clusters. For voting and confidence checks, invite at least one advisor or beta user to avoid solo confirmation bias.

Sources

Research used in this article

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