Where they are · The places · Element
The locations
Where they actually are.
The part
What it is
Publications, communities, events, platforms, and the people they listen to. Some of these are not channels in any media-planning sense.
Professional communities and specific individuals frequently matter more than any platform, and neither can be bought.
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.