This is a presentation that I gave at the Drupal Developer Days, on 6 February 2011. It's meant as an introduction to single sourcing. It contains the results of the documentation questionnaire we ran.
What would the ideal documentation system for a community driven project like Drupal look like?
From the outside Drupal is perceived as a well documented project, and several people choose to work with Drupal because of this. On the inside however, a lot of people complain about the documentation. What's the reason and the meaning of these differences in perception?