Disclaimer
This document began as a general introduction to XOBIS and got out of control as we struggled to keep track of haphazardly recorded decisions.It was difficult to propagate changes in this documentation due to the uneven course of the evolution of XOBIS, and sometimes vice versa. In the event of discrepancy between the documentation and the schema, we reserve the right to squabble amongst ourselves in private before determining whether either has precedence.