This is the unfinished / incomplete version of a piece of work.
For example there may be several 'drafts' of a document.
Drafts are produced, so people can review, make additions or changes to it. Eventually a 'Final Draft' is produced and once that is approved by the appropriate person, it become the actual published document.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Draft