Method · The approach · Element
The design
How the analysis is structured.
The part
What it is
What is compared with what, over what period, controlling for what. The design is where most of the quality lives.
A design that cannot be described in three sentences is usually one that has not been thought through.
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.