Channel selection · The experiment · Element
The tests
What is being tried, and what would count as success.
The part
What it is
The threshold set before the test runs, so that a marginal result is not read as promising by whoever proposed it.
Enough spend to reach a readable result; an underfunded test produces an unreadable one and a conclusion anyway.
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.