You're an XML content author. You want to edit content in text or visual mode using DITA, DocBook, or a customized framework, or just plain XML. You're not interested in XML development tasks, such as modifying stylesheets and schemas.

You're a developer. You create XML Schemas, develop XSLT stylesheets, XQuery, or XProc. You're not interested in visually editing XML.

You're both a developer and a content author. You need the complete XML development features and the visual XML-editing mode.

You're a publisher. You need to automate the transformations of DITA/Docbook documents to WebHelp output for desktop and mobile devices, using command line scripts, outside of Oxygen XML Editor.