How to read this
Ten views of one system. Colour means the same thing on every page; position means ownership; an arrow is reserved for the relationships position cannot express.
Read this one first. Colour carries the same meaning on every other page, position carries ownership, and an arrow is spent only where position cannot say the thing — so a page with few arrows is a page where containment already did the work.
The consequence worth knowing: if a box sits inside a zone, that zone owns it. Ownership is never implied by an arrow.
Drawn from its model, and rendered by the atlas project innanohype/.github.