Conclusion
Plan for not knowing what the future may hold
Help free your data from the application that created it
Make it easier for ‘people who are not you!’ to reuse the data
Make it easier for ‘you who are not other people!’ to reuse their data without persuading them to change it to suit
Annotating XML schemas in a machine processible manner is an simple, but important step towards this goal
But there is much more work to do; you can help