The limits · The exclusions · Element
The sensitive
Inferences that are ruled out absolutely.
The part
What it is
Health, financial distress, personal relationships and anything that would be distressing if the customer realised it was known.
These are inferable from very ordinary data, which is why the exclusion has to be explicit rather than assumed.
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.