The offer · The offer inventory · Element

The terms

The commercial conditions attached — commitment, payment, cancellation, guarantee.

The part

What it is

Terms are part of the offer and frequently the part that decides it. A guarantee can be worth more than a feature and cost less to provide.

They also carry risk. A generous cancellation term is a real cost that appears nowhere in the product description.

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.