Communication · The margin · Element
The promised level
What the promise commits to.
The part
What it is
Stated in the same unit the delivery is measured in, so the two can be compared without translation.
Where the promise is qualitative, an internal quantitative equivalent is needed or the margin cannot be assessed at all.
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.