A training system (1) has various media for interfacing with a user. A system controller (2) uses an interface file (17) to automatically execute action commands to perform an interfacing event. The action commands are delimited by interactivity point commands, execution of which halts an execution path...http://www.google.es/patents/US6308042?utm_source=gb-gplus-sharePatente US6308042 - Computer based training system
