Dataform System events
From Learnit docs
Template:Dataform Template:Dataform Docs Note 1
The Dataform system events are triggered with attached data during the activity, at moments that may be of interest and worth capturing for various purposes (e.g. logging, notifications). You can capture these events in your existing custom module or create a designated plugin (e.g. block, local) for that.
Add-on views and fields may provide further event triggers.