Doing the same thing every time.
WHY IT MATTERS
An unrepeatable process cannot be trusted, tested or delegated.
WHAT REPEATABLE MEANS
The same inputs produce the same result, regardless of who runs it.
WHAT MAKES A PROCESS UNREPEATABLE
Steps held in memory Manual judgement at each step Dependencies on a specific machine Undocumented prerequisites
WHAT TO TEST
Whether someone else can follow your process successfully.
HOW
Have them do it, while you stay quiet.
WHAT THAT REVEALS
Every assumption you did not write down.
WHAT REPEATABILITY ENABLES
Deploying frequently without fear Recovering quickly Onboarding new people Testing the process itself
WHAT TO AIM FOR
Setting up an entire environment from nothing, with one documented procedure.
WHY THAT MATTERS
It is also your disaster recovery plan.
WHAT TO MEASURE
How long it takes to go from nothing to a working environment.
WHAT TO REDUCE
That time.
