Topic 2 and 3 - Validation and Verification

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Where can errors occur with data?
Input, Transmission and Processing
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What is Verification?
Verification is the checking that has been copied correctly from one medium to another- an exact copy but may not be accurate.
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What is validation?
it is the checking that data is legal, reasonable and complete but may not be an exact copy
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What is the difference between validation and verification?
Validation is the checking that it is reasonable and legal, verification is the checking that its an exact copy.
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What are the two types of Verification?
Double entry, Proof reading
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What are the types of Validation?
Range check, Precense Check, Format check, fixed value, data type, Check digit, Length check
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What is double entry?
Comparing the info against each other
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What is proof reading?
reading the work to check that it has been copied correctly
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What is Range Check?
Data between 2 numbers
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What is presence check?
Something must be entered into this field
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What is format check?
Must be of in the correct format that has been predefined
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What is fixed value?
Must conform ti one of a predefined value
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What is data type?
Data that is of a specific format or type
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What is check digit?
A calculation that will equal the last number found on a barcode
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What is length check?
Must have certain number of characters
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Other cards in this set

Card 2

Front

What is Verification?

Back

Verification is the checking that has been copied correctly from one medium to another- an exact copy but may not be accurate.

Card 3

Front

What is validation?

Back

Preview of the front of card 3

Card 4

Front

What is the difference between validation and verification?

Back

Preview of the front of card 4

Card 5

Front

What are the two types of Verification?

Back

Preview of the front of card 5
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