The questions

What is not yet known that the direction depends on.

The part

What it is

Good questions are answerable. “Will customers like it” is not; “will forty per cent of the segment pay the proposed price” is.

Ranking them by how much rests on the answer is what stops the easy ones being answered first.

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.

Question
What needs to be found out, phrased so it can be answered.
Text shared type
Weight
How much of the plan depends on the answer.
Priority shared type