From Wikipedia: Sharable Content Object Reference Model ( SCORM ) is a collection of standards and specifications for web-based e-learning. It defines communications between client side content and a host system called the run-time environment , which is commonly supported by a learning management system. SCORM also defines how content may be packaged into a transferable ZIP file called "Package Interchange Format" (PIF) SCORM is a specification of the Advanced Distributed Learning ( ADL ) Initiative, which comes out of the Office of the United States Secretary of Defense. SCORM 2004 introduced a complex idea called sequencing , which is a set of rules that specifies the order in which a learner may experience content objects . In simple terms, they constrain a learner to a fixed set of paths through the training material , permit the learner to " bookmark " their progress when taking breaks, and assure the acceptability of test scores achieved by the lear...