Behaviour change · The verdict · Element
The segments
Who responds and who does not.
The part
What it is
Frequently the middle of the base: the most loyal would have stayed and the least engaged do not participate.
Where only one segment responds, the programme can be narrowed, which improves the economics substantially.
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.