Evolution · The fixed parts · Element

The authority

Who can authorise a change to a fixed part.

The part

What it is

It should be a small number of people and a deliberate process, because the whole value of the fixed parts is that changing them is difficult.

A fixed part that a marketing manager can revise for a campaign is not fixed.

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.