Use it when you need a defendable “yes / no / not yet.”
Best fitYou’re near a decision point and need the case to survive internal scrutiny—without a long diligence cycle.
- Before funding: confirm the lever and payback band
- Before building: define what “proof” means and who owns it
- Before scaling: pressure-test assumptions and stop rules
- Before cross-functional rollout: make decision rights explicit
Rule of thumb: if the next step requires real spend (or political capital), run the Diagnostic first.