The document is a presentation by Alan Houser on using DITA for online help, outlining DITA's architecture, features, and various approaches to help authoring. It discusses the challenges of integrating DITA with context-sensitive help systems and presents different methods for generating output from DITA, including the legacy, do-it-yourself, punt, and hybrid approaches. The conclusion highlights that while DITA can support traditional help formats, efficient context-sensitive online help may require significant customization.