We know you've been here. You go to a trade show, you want to attend a workshop, you go to the room it's listed in your program only to find it's been moved. I worked on addressing this issue with the worlds largest IT security provider- Symantec. Through the use of plasma display screens situated through out the convention, we had schedule running off of dynamically driven XML feeds. When workshop need to be moved or rescheduled, only one simple file needed to be changed to automatically update every display. As an added bonus we were also able to incorporate video and display messaging, putting together a package that removed the need for printed signage altogether. Because the screens could be re-used year after year, it saved printing costs over a three year period, as well as a whole lot of trees.