The curriculum prerequisite structure is the learning map or path that is displayed to the learner. In general, the structure is constructed to reflect the actual knowledge dependencies between the nodes. This ensures that learners cannot proceed (when links are not set to visual only) with learning until they are ready for it and that the system can effectively use its logic to understand how concepts are related, Determine Knowledge and use this to apply remedial actions as necessary. 

Video Length: 00:04:09