Routing · The handoff · Element
The reception
Whether it is read.
The part
What it is
Asked rather than assumed. Feedback routed into a shared mailbox has been recorded rather than delivered.
The receiving function should be able to say what came through last month.
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.