RACI (pronounced “racy”). Each letter stands for how someone relates to a project: responsible for doing the work, accountable for the success of the work, needs to be consulted on the work, and needs to be informed on the status of the work.

What do people need to understand? What are the edges of the map or diagram? What are you not mapping or diagramming? Where will other people see this map or diagram (e.g., on a wall, in a presentation, on paper)?