The review · The rhythm · Element
The frequency
How often each measure is looked at.
The part
What it is
Set from how fast the measure moves and how fast a response could take effect, whichever is slower.
Different measures in the same review can have different frequencies; not everything needs discussing every time.
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.