Preventive Education

If no trajectory exists between a participant's profile and the next item he wants to validate, the system may warn him that it is likely that he will fail.

By doing this, the participant may change his mind about validating the item (and therefore avoid a probable failure).

If the participant insists in trying to validate the pedagogic item, the system may try to find a short path between the items validated in the participant's profile and the one he wants to validate, in order to re-use the knowledge previously validated by the user and minimise the path towards the new item.