It would seem that the permissions are not quite as fine tuned as I would expect.  For example, if a technician wants to edit their notes, they need the 'Delete' -> 'Editing/Deleting Others notes' permission set.  This means they can edit every note registered as well as their own.  Surely this needs to be seperated so they can either, edit/delete their own notes/work logs/tasks or do so with everybodies. 

I don't really want my technicians being able to change other technicians notes. 

Perhaps I'm missing something!!

Cheers

John