Briefle words · Prompt craft
Operational definition
A precise statement of how a term is measured, in concrete observable steps, so everyone counts the same thing the same way.
Say it to an AI
From the attached export, count August active users, where 'active' means at least one login and at least one logged workout in August; logins alone don't count. Give the count, the share of all logged-in accounts, and how you filtered.
How an expert would ask for the stronger version of “Monthly active users”.
See it
Try it as a puzzle →A product manager at a fitness app asks an AI to count active users from a data export.
Why: A's '“active” means logged in and logged at least one workout that month' is an operational definition; B leaves 'active' open.
Related words
Room 2 · Context & grounding
Learn “Operational definition” in a five-minute lesson