The offer · The unmatched list · Element

The unused elements

Parts of the offer that address no recorded need.

The part

What it is

The usual explanations are that the element serves a need nobody wrote down, or that it is genuinely surplus. Both deserve investigation rather than assumption.

This list is where cost comes out of an offer with no effect on what customers value.

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.