Data Integrity

The four control areas of data integrity

Input controls, processing controls, output controls, application controls

The two types of input controls

Validation and verification

What is input validation check’s aims?

To ensure the data meets the systems pre defined rules

What is input data verification?

To ensure check that the data inputted matches the source data

Input data validation control examples

Check digit check, reasonable check, on file check, range check, format check and duplicate check

Data input control aims

For the completeness and accuracy of data inputted. To comply with audit standards.

Data processing control aims

For the accuracy and completeness of data processing

Data processing control checks

Processing test data, inputting data twice, batch control sheet

Data output control aims

For the completeness and accuracy of output data inputted comparison to the input data.

Data output control checks

Distribution list, completeness check I.e page numbering, exceptions report (outliers), reconciliation to input data