The seams · The cost · Element
The volume
How many customers encounter it.
The part
What it is
From the journey data rather than from impression. A seam that feels significant internally may be on a path almost nobody takes.
Volume is what separates the seams worth closing from the ones worth accepting.
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.