Four‑Fit Validator

Use this form to assess your project against the Four‑Fit gates. No data is stored.

Checklists and stop rules

• Problem Market Fit
  • Evidence of active solution seeking and willingness to pay
  • Stop if not observed in field
• Behavior Market Fit
  • Ability ≥ 6/10, Motivation ≥ 6/10, Environment ≥ 6/10
  • Stop if limiting factor < 6/10
• Solution Market Fit
  • TTFB < 5 minutes (B2C) or < 1 day (B2B pilot); clear completion by D7
  • Stop if the median user requires training to complete
• Product Market Fit
  • Behavior retention at D30 and D180; organic spread explained by behavior visibility/network value
  • Stop if retention not met; return to prior fit

Links: Δ‑B, TTFB, CRS (Chain Risk Score)

Domain

Consumer Enterprise pilot

Problem Fit

Active solution seeking in target segment (%): Willingness to pay or invest time (%): Independent workarounds observed (count):

Behavior Fit

Observed completion of target behavior in realistic context (%): Ability rating 1‑10 (median): Motivation alignment 1‑10 (median): Environment support 1‑10 (median):

Solution Fit

Time to first behavior (minutes): Completion rate of target behavior with solution (%): Reported friction items resolved (count):

Product Fit

Behavior retention D30 (%): Behavior retention D180 (%): Referral or advocacy attributable to behavior (% of growth):

Heuristics only. Calibrate thresholds by domain and link your claims to the Evidence Ledger.