The exchange

What the customer gives in return for the reduction.

The part

What it is

A discount given for nothing establishes the new price and teaches the customer to ask again at renewal.

Common exchanges — longer commitment, larger volume, payment terms, a case study — all have value that can be estimated and compared with the discount given.

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.

Exchange type
Commitment, volume, terms or reference — the thing received in return.
Choice shared type
Value received
What the exchange is worth, so the trade can be judged rather than assumed.
Money shared type
Condition
What must hold for the discount to continue applying.
Text shared type