The sources · The maintenance · Element
The dependency
Who the source depends on.
The part
What it is
For manual sources, one person. Recording it makes a familiar single-point dependency visible rather than discovered.
The question worth asking is what happens to the reporting if that person is away for a 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.