> Example situation: user_1 writes the text and sends it to user_2 and > user_3; they both simultaneously make changes and return their > corrections to user_1.
Seems that you want to learn the basics of how to use a revision control system. Just read the Subversion book. It's freely available as a PDF file from http://svnbook.red-bean.com/en/1.5/svn-book.pdf. And editing the same instance of any document simultaneously by two or more people is _always_ a B-A-D idea. Because the result _will_ be inconsistent. Sincerely, Wolfgang -- Führungskräfte leisten keine Arbeit (D'Alembert)
