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I just found this. This is a huge problem. Blackboard has patented the CMS system for educational institutions. http://radar.oreilly.com/archives/2006/08/blackb

• bayareaguy 19y ago
  There has got to be prior art for some of this from the old "Orange Book" (aka compartmented mode workstation) security model. CMW included audit trails for everything, even things like cutting and pasting information from windows running at different security levels. Oh that right, I forget.. blackboard does this over the Internet. How silly of me to overlook the significance of that technical leap. Edit: I should have read the links in the article. The prior-art already gathered on Wikipedia is pretty impressive: http://en.wikipedia.org/wiki/History_of_virtual_learning_environments http://en.wikipedia.org/wiki/History_of_virtual_learning_env...