Well First Let me explain what does it mean by Promotion and Demotion Promotion    -    It means that you capture the value present in the document (*.xml or wordML or you can   write your own document parser) and expose it to the SharePoint document library as a Column. What you get out of it is that you have a synchronization of the Data between the document and Column of the doc library. (When you update the document it gets automatically reflected in the document library and vise versa.)  Demotion        -    It means...