The competitor set · The set · Element
The entries
Each option competing for the demand.
The part
What it is
Named specifically, including internal builds and doing nothing, which are options rather than organisations.
The list should be short enough to be maintained. Twelve entries is a set; forty is a directory.
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.