Assumptions and scenarios · The assumption register · Element
The assumptions
What has to remain true for the goal to make sense.
The part
What it is
Assumptions cover customers, costs, technology, regulation and competitors. The ones that go unstated are usually about competitors.
Phrasing them as claims rather than as conditions makes them easier to test: “our main competitor will not enter this segment” rather than “competitive stability”.
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.