The words we choose matter. They represent the ideas we want to bring into the world. We need words so we can make plans. We need words to turn ideas into things.

Scope is your clearly stated purpose for the diagram.

What channels do your users prefer? What context are they likely in when encountering what you're making? How are they feeling? Are they in a hurry? Are they on slow Wi-Fi? Are they there for entertainment or to accomplish a task?

But to make sense of real-world problems, you need to understand how users, channels, and context relate to each other.

setting goals with incomplete data is still a good way to determine if you're moving in the right direction.

To think through scope and scale, ask yourself: 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)?

control your vocabulary:

Language is any system of communication that exists to establish shared meaning.

When it comes to language, people are slow to change and quick to argue.