Description
Writing modular documentation helps to organize the collaboration of teams on documentation. There is no need to synchronize the work of a number of team members when working on some documents. Separate the topics into different modules so that each member works on its own set. If multiple team members have to work on the same set of documents, having modules at least reduces the number of clashes where two team mates have to edit the same document at the same time.
Writing modular documentation is hard. So expect to learn a lot on your way.