Validation and Verification
How Data Errors Occur
Candidates should understand how:
The purpose of validation and use of the common types
Candidates should be able to define and understand the purpose of validation:
The purpose of verification
Candidates should be able to define and understand the purpose of verification:
Candidates should understand how:
- data errors can occur during input, transcription, processing and transmission
The purpose of validation and use of the common types
Candidates should be able to define and understand the purpose of validation:
- presence
- format
- range
- data type
- fixed value
- check digit
The purpose of verification
Candidates should be able to define and understand the purpose of verification:
- double entry
- proof reading
- sending back printouts
Resources
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