Authoring formats DITA-OT³ supports several alternative input formats in addition to standard DITA XML, including Markdown and the proposed XDITA, MDITA and HDITA authoring formats currently in development for Lightweight DITA. Lightweight DITA LwDITALightweight DITA MDITALightweight DITA XDITALightweight DITA HDITALightweight DITA authoring formats input formatsauthoring formats formatsauthoring formatstransformations