Validation & Verifcation Flashcards
What is the meaning of Verification?
Ensures data appears in document/database is same as original source data.
What is Visual Checks or Double Entry?
Where 2 people enter same data separately.
Proof reading also done.
What is Validation?
Carried out by computer to check that data being entered is acceptable & reasonable to certain rules.
What are some examples of Validation Checks?
Range. Format/Picture. Length. Presence. MANY MORE.
Validation Checks- What’s the features of Range?
What it does- Checks data is within set range.
Example of use- Date between 3rd March & 22nd October.
Validation Checks- What’s the features of Format/Picture?
What it does-Each character is allowed or in set position.
Example of use- Checks email address.
Validation Checks- What’s the features of Length?
What it Does-Correct No of characters entered.
Example of use-Postcode.
Validation Checks- What’s the features of Presence?
What it does-Checks data has been entered.
Example of use- Name has been entered.
What are the 2 other ways of checking data?
Control Total
Hash Total
Validation Checks- What’s the features of Control Total?
What it does-Adds up total set of numbers & checks its meaningful.
Example of use-Total recalculated at intervals to check data is the same.
Validation Checks- What’s the features of Hash Total?
What it does-Adds up set of numbers, sum has no meaning.
Example of use- Total is recalculated.
