H5P and xAPI (aka Tin Can)
In the February Release of H5P the xAPI integration is introduced. H5P's current approach is to generate xAPI statements and make them available through javascript events.
The xAPI events are made available externally and also used by H5P internally. It is used between interactive video and the questiontypes for the interactivities and to calculate total scores, it is used by Questionset to know when a question has been attempted and by H5P core to store the total scores in the database.
