Check That No Stand-In Did a User’s Step
The Shortest Truthful Distance
Companion to You Are Not the User · Updated 2026-09-29
Use this when you want to check that a piece of product work went through the whole loop without a stand-in doing a user’s step. Worked in “A Fast Loop Only Works if Real Users Stay in It.”
The Shortest Truthful Distance loop check for one piece of work.
| Step | Who did it | Output | Real user present where the step needs one? |
|---|---|---|---|
| User | |||
| Observation | |||
| Evidence | |||
| Prototype | |||
| Real-user validation | |||
| Engineering hardening | |||
| Production measurement |
User, real-user validation, and production measurement can’t be done without real users. If any of those three rows names only internal staff, the work isn’t finished; it’s waiting at that step.
