Info 1 validation/verification

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What causes inaccurate data input?
Incorrect data input (e.g. typo). Errors (transcription, transposition). Incorrect personal data
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What are the consequences of incorrect data input?
Inaccurate decisions made, time wasting, loss of trust/goodwill, prosecution (DPA)
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What is a transcription error?
An error which is caused by the data provided. Handwriting, or speech may lack clarity, and so maybe dependent upon the human operators own interpretation
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What is a transposition error?
An error which is caused by incorrect sequence of characters, which is caused by high speed typing. It can be reduced by proof reading.
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What is needed for batch validation?
Hash totals and control totals
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What is a check digit?
This is used when you want to be sure that a range of numbers has been entered correctly for example a barcode or an ISBN number:
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What is an input message?
A message that appears when a cell is selected for data entry. An input message indicates to the user the type of data that should be entered.
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What is a validation rule?
A command that is given to a specific field to set up the validation.
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Define validation method
A message box which appears if the data entered does not match the validation rule.
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Name some ways that data can be processed
Calculations, producing a graph or chart, sorting, logical operations etc
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What is a data type check?
Ensures data being entered is in the same data type is being entered
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What is a length check?
Ensures data is of correct length
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What is a cross-field check?
This is where the data entered into multiple fields are checked together, to check the data is correct.
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What is a format check?
A check which is used to ensure the data being entered is of the correct format.
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Other cards in this set

Card 2

Front

What are the consequences of incorrect data input?

Back

Inaccurate decisions made, time wasting, loss of trust/goodwill, prosecution (DPA)

Card 3

Front

What is a transcription error?

Back

Preview of the front of card 3

Card 4

Front

What is a transposition error?

Back

Preview of the front of card 4

Card 5

Front

What is needed for batch validation?

Back

Preview of the front of card 5
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