Winding down · The explanation · Element
The message
What is actually said.
The part
What it is
What is changing, when, why, and what it means for the individual member. In that order and without preamble.
The reason should be real. “To simplify the programme” when the reason is cost is recognised.
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.