For anyone who has to rule on a measurement they did not build.
- The external consultant or specialist who inherits a measurement and has to give an opinion on it to whoever pays them.
- Anyone accountable for their own operation who needs to know whether the number they are about to show in a meeting holds.
- Marketing, growth and analytics leads who decide on a number and need an explicit criterion for how far it can be pushed.
- Agencies that need a neutral, signable document to hand to a client.