I have used data certification in APM module and It plays a very important role in certifying all the Business Application/Application Services and their child CI ,when owner of the Applications can certify the ci within the timelines (no of days provided in the certification schedule) on every review year.
And yes for this OOTB Workflow is running which send reminders on the basis of task percentage(25,50,75 and 90) completion, if you are lacking to complete your task then escalation will also be handled by Workflow
Apart this i have added some kind of related link on the task so that user can Update there Applications and set the implementation year of particular application via diff methods and can change other field values.
And for overdue there is only reminders you will receive apart this owner and managed by of business application can check the attributes of their CI and can update .
Rest I will check in the instance if i found anything on this will post that here.
