Data integrity

Question 1

CAR RAT

Answer 1

Correctness
Accuracy
Reasonableness

Relevant
Authenticity
Timeliness

Question 2

Correctness

Answer 2

Has it been entered correctly? Without typos

Question 3

Accuracy

Answer 3

Complete, clear, correct and consistent

Question 4

Reasonableness

Answer 4

The data needs to suit the requirement. (e.g student born in 2020 is not reasonable for a high school enrolment page.)

Question 5

Relevant

Answer 5

The data needs to fit the purpose. Is the data relevant to the system’s purpose. (e.g. Student’s favourite ice cream flavour for a library borrowing system is not relevant)

Question 6

Authenticity

Answer 6

The data source needs to be trustworthy.

Question 7

Timeliness

Answer 7

The data needs to be recent/relevant to the program.

Question 8

Data life cycle

Answer 8

Create data, validate data, share data, backup data, archive data, delete data

Question 9

Difference between backup and archive

Answer 9

Backup means a copy is taken.
Archive means the data is moved.

Question 10

Threats to data integrity

Answer 10

Accidental threats, event based threats and deliberate threats

Question 11

Impacts x3

Answer 11

• Loss of customer loyalty
• Costs of repairs
• Decline in stock market value etc.