Brainstorming

Brainstorming
is a group creativity technique designed to generate a large number of ideas for the solution to a problem.
Clustering
is the pre-writing technique of organizing ideas with “ball-and-stick” diagrams similar to mind maps
Listing
is a way of putting sub topic ideas related to a main topic below it, as part of the writing process.
Free writing
is a term applied to a technique used by mainly prose writers or teachers of writing. It refers to a method by which a writer can overcome blocks of apathy and self-criticism to produce a raw but often usable material.