Data Integrity

Data integrity refers to the

• accuracy,
• consistency, and
• reliability of data

throughout its lifecycle. It ensures that data remains unaltered and trustworthy, whether it is being

• stored,
• processed,
• or transmitted.

Maintaining data integrity involves implementing measures to prevent unauthorized access, corruption, or loss of data.

In the context of Database and information systems, data integrity can be enforced through:

1. Validation Rules: Ensuring that data entered into a system meets certain criteria.
2. Access Controls: Limiting who can view or modify data.
3. Backups: Regularly saving copies of data to prevent loss.
4. Error Checking: Using Checksum or Hashes to verify data integrity during transmission.