The profile · The situation · Element

The constraints

What limits what they can do.

The part

What it is

Budget authority, approval requirements, existing commitments and time. These decide whether a good solution is adoptable.

Budget authority is the one most often assumed and most often wrong, particularly in organisations where the user and the buyer differ.

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.