Channel performance · The management cost · Element
The time
How much attention the route consumes.
The part
What it is
Estimated across everyone involved: relationship management, enablement, dispute handling and reporting.
A rough figure is enough and is far better than the implicit zero currently used.
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.