This discipline is concerned with creating quality text content. Rewriting deals mainly with editing texts that have already been written. Based on need, the text is reshaped in the way required for it to be memorable.
It must be readable, meaningful and of some informational value to the reader. The edits consist of shortening, lengthening, rephrasing or introducing keywords or phrases.
This discipline is similar to copywriting, but it does not deal with creating texts, rather with reshaping them.