Original brainstorming and hypothesis-es. This is where I get "broad ideas" for possible topics.
Narrow it down
This is where I pick a few topics that interest me, and further my ideas on them, including the "Scratch
outline" that will help me write the discovery draft.
Discovery Draft. I discover if my working "thesis" (the hypothesis) works or not, and get my ideas on paper, not
worying so much about style and order. From here is "global revision."
Draft II, I refine my thesis, reorganize, cross out what doesn't need to be there, focus
ont he main points, and generally rewrite the first draft.
Draft III, if necessary, continue to edit out unnecessary parts, and flush out the important
ones. This is where the "local" editing, the grammar, spelling, and mechanics of editing take place.