I maintain the BTEC Advanced grading method plugin. I would like to ensure that it returns all the right information for the admin/tool/dataprivacy/pluginregistry.php report. So I took at look at the core Rubric plugin and it returns
"The rubric grading form plugin does not store any personal data."
However if a student submits a rubric graded assignment the table
mdl_gradingform_rubric_fillings
gets populated with the student grade information.
The BTEC plugin has a similar table, am I missing something or is that information reported on somewhere else?