Pricing · The value basis · Element
The ceiling
The point beyond which the customer stops buying, and what determines it.
The part
What it is
The ceiling is rarely the value estimate. It is usually set by budget authority, by a competing internal priority, or by what the buyer can justify to someone else.
Knowing what sets the ceiling is more useful than knowing the number, because the constraint is sometimes addressable.
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.
What sets it
Budget authority, comparison or justification — sometimes an addressable constraint.
Reason shared type