I meant an pioneering an open source solution. You are right, there are proprietary (very expensive and complicated) solutions out there that you can use. My point is, when the open source community puts its head together on a problem they usually come out with something that's pretty stable and secure. Both properties are advantageous in file systems and DRDB like storage solutions :-)
For most courses the exams don't stray far from what's already been asked before. Competition between universities has made this problem a lot worse. Students choose courses with high pass rates and favorable grade ratios.