The story · The tension · Element
The difficulty
What nearly did not work, or what had to be given up.
The part
What it is
Specific rather than general. “It was hard” is not tension; “we spent eighteen months building the wrong thing” is.
The difficulty should be real and survivable in the telling — something the organisation can name without it undermining current confidence.
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.