<oXygen/> now offers a simplified version of the tool suited for authoring.
There are people that are not developers or there are times when you are not interested in the development features of <oXygen/> and you want just to do XML editing. <oXygen/> Author removes the development features offering a more simple interface for XML editing.
A DITA maps manager allows viewing and editing DITA map files. It also acts as a project manager allowing you to easily open different topics/concepts for editing.