The document discusses several e-learning standards including SCORM, AICC, DITA, and PENS. SCORM was created by the US Department of Defense to promote interoperability and reusability of e-learning content. AICC was created by the airline industry for computer-based training delivery. PENS and DITA were later created by AICC to automate content exchange and divide content into reusable topics. The document notes that while standards provide options, they also create complexity. It concludes by mentioning the new LETSI organization taking over governance of SCORM and plans for the future of e-learning standards.