Per request, I have posted a Powerpoint version of the presentation "Dynamic Navigation in DITA," byErik Hennum and Robert Anderson, from the Content Management Strategies Conference 2004.

http://xml.coverpages.org/dita.html#DynNav-CIDM

"IBM is exploring dynamic management of content using DITA. DITA rigorously separates content from context. The context can be represented as a manipulatable TopicMap. An information provider can both assemble information from multiple sources and personalize information for multiple audiences." Contents: (1) The problem with static content [challenges of integrating information components, serving multiple audiences, and scaling to the enterprise]; (2) Solving the content problem with DITA [creating content for many contexts, specifying metadata properties such as the content audience]; (3) Solving the processing problem [scoping and filtering content with an on-demand repository]; (4) Demo of solution.