Channel performance · The customer quality · Element

The retention

How long customers from this route stay.

The part

What it is

Compared across routes on the same cohort basis, since routes may serve different segments with naturally different retention.

Where a route’s customers leave faster, the cause is usually a mismatch between what was sold and what was delivered.

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.