It is very necessary that before the output of a processed data is given, it is tested to avoid giving wrong information. This is why the error-free information is introduced.
To ensure an error-free result, the following has to be done:
- Data Control: It ensures that the right data is put in.
- Data Verification: Ensures that data is not misread, omitted or misinterpreted during operation.
- Data Validation: This ensures that any wrong or unreasonable data is detected.