In the application, some specially activated data marts, on which reports are based directly, can also be edited. Such processing is subject to both an access control and a 4-eye work flow to confirm a change.
In addition, values of cells of a report can also be overwritten if necessary (e.g. if the reports were generated by a third-party system, and only the consistency of the report values should be checked in the application, see following).
Each change is documented by audit trail, e.g. it is always logged which user has when performed any changes, what has changed (including a comparison of old value and new value), and why the change was made (optional text).
If validation rules exist for reports affected by the data change (e.g. for the data points in the FinRep/CoRep reports according to the EBA (= European Banking Authority)) these can be implemented as part of the change and violations of these rules can be reported (e.g. if aggregated fields do not match the individual amounts).
