Start with scope and scale.
Before you make objects like diagrams or maps, spend some time determining their scope and scale.
Scope is your clearly stated purpose for the diagram. The scope of a blueprint for an actual house is greater than the scope of a diagram explaining the rooms that make up a typical house.
Scale is the relative size of your diagrammatic work.The scale of a map covering a wall is greater than the scale of a map on regular-sized paper.
To think through scope and scale, ask yourself:
While you’re thinking about scope and scale, consider the timescale you’re working with.
A timescale is a period of time your map or diagram represents. There are three main timescales:
It’s often easier to think about how things were then or how they are now before proposing changes.
As an example, if we wanted to make sense of changes to the American healthcare system over the last year, we could diagram at each of the three timescales:
- Then: How did healthcare work ten years ago?
- Now: How does healthcare work today?
- When: How do we want health care to work after we’ve made these changes?