Mike Hales is working on a book-like plan, and need to have an equivalent to sections and chapters. Wiki provides no tools for categorization in this way (…). matrix 
Lightweight DITA (LwDITA) is a simplified version of the Darwin Information Typing Architecture (DITA). In comparison to DITA XML, LwDITA has a smaller element and attribute set, stricter content models, and a reduced feature set. LwDITA also defines mappings between XML, HTML5, and Markdown, enabling authoring, collaboration, and publishing across different markup languages.