Routing · The destinations · Element
The mapping
Which function owns which category.
The part
What it is
One owner per category, chosen as whoever can change the thing being complained about.
Set once and revisited when the category set changes.
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.