Validation Sprints

Sprint Gates
  • PMF ≥ 0.75 confirmed
  • BMF_min ≥ 6 confirmed
  • Prototype defined and instrumented
  • SMF target pre‑registered

Objective: De‑risk one target behavior and its enabling solution in 10 working days.

Cadence and Deliverables

Day 1-2: Problem & Behavior Re‑validation

  • Re‑compute PMF from latest inputs
  • Observe 5 users in‑context to confirm BMF_min ≥ 6
  • Ethics and privacy check: consent language, data retention, anonymization plan

Day 3: Behavior Path Sketch

  • Diagram the exact steps and context for the behavior
  • Identify weakest step and hypothesize barriers

Day 4-5: Prototype to Enable Behavior

  • Build the lightest prototype that removes the weakest barrier
  • Pre‑define SMF metrics and analytics

Day 6-8: Field Test

  • n ≥ 30 users if possible, or ≥ 15 for enterprise pilots
  • Measure: Behavior Completion Rate, Time to First Behavior, Repeat Within 7 Days

Day 9: KPI Plan + Cohort Setup

  • Define bPMF targets and cohort instrumentation

Day 10: Decision Memo

  • Go if SMF ≥ 0.70 and qualitative failure modes are solvable
  • No‑Go or Iterate if below threshold

Artifacts: behavior path sketch, KPI plan, decision memo, raw observation notes.

Licensing

Content © Jason Hreha. Text licensed under CC BY-NC-SA 4.0 unless noted. DRIVE is a trademark of Jason Hreha and requires attribution for commercial use.