Why do activities such as the book module implement the "null provider" as meta data provider (and consequently no request provider) instead of linking to a subsystem as required here?
Thanks for any help 
Because things like Activity Completion are features of the course and potentially affect all activities. The activity may not necessarily know that it even supports this functionality.
Such things are handled by the privacy Manager here, and you can see how things are pulled into the shared space here.
Best wishes,
Andrew
Hi Andrew,
Thanks a lot! Very helpful!
Greetings,
Flotter