Instrumentation · The tracking plan · Element
The currency
Whether the plan matches what is actually implemented.
The part
What it is
Plans and implementations diverge as the product changes. A plan that has not been checked against reality is a plan that describes a former version.
Verifying takes an hour and prevents analysis built on events that no longer fire.
The smallest level
The attributes it carries
Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.