Via Jon Bosak, a pointer to this XML 2004 presentation (PowerPoint, sigh), about the Danish Government’s deployment of a bunch of XML technologies including UBL. Check out slides 4 & 5: they estimate the annual savings achievable from invoicing in UBL at somewhere between €100M and €160M. I may be out of step with the crowd but it seems painfully obvious to me that UBL is going to be huge and I don’t understand why more technology vendors (including my employer) aren’t refocusing their e-business strategy around it.