Adequate controls have to be implemented if an organisation wants to reduce errors and fraud when using computer technology.

It is in the design stage of an information system that the appropriate controls are planned to ensure reliability of data.

A good design can prevent both intentional and unintentional alteration and destruction of data. The data controls can be classified as input controls, process controls and output controls.

For each of these control categories, provide two (2) specific controls and state their contribution to data reliability