Making a list means just what it says, recording ideas that relate directly to a certain subject. Listing is more directed than brainstorming or freewriting; if you decide to make a list as a form of prewriting, then you already have a sense of both your particular focus on the subject and the various aspects related to that focus. You may end up expanding or deleting from your list as you work with it, and that's to be expected. A list is a means of capturing all aspects that you can think of that relate to your focus on the subject.
Focused Subject: ways in which communication can flow in an organization