A__ outline includes the minimum amount of information needed to the speaker remember.
1. preliminary
2.keyword
3.skeleton

A keyword outline includes the minimum amount of information needed to help the speaker remember. This is your main helping tool which contains all the points that can make you remember important things you want to include in your speech. If you want to represent a truly impressive and persuasive speech you have to follow keyword outline that also will help you to keep up chronological order of your ideas.