In addition to standard DITA XML, DITA-OT supports several alternative input formats, including Markdown and the proposed XDITA, MDITA and HDITA authoring formats currently in development for Lightweight DITA. Lightweight DITA LwDITA Lightweight DITA MDITA Lightweight DITA XDITA Lightweight DITA HDITA Lightweight DITA authoring formats input formats authoring formats formats authoring formats transformations