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A common problem with computer systems is that it is very easy to put incorrect data into them
Member rating: No Rating | Words: | Submitted: Tue Oct 17 2006
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Validation and verification manual A common problem with computer systems is that it is very easy to put incorrect data into them. For example: You could mistype a name or an address in a database resulting in letters being sent to the wrong people. An EFTPOS till could misread a barcode and charge the wrong price for a product. A MICR reader could misread the account number on a cheque and take money out of the wrong bank account. If you put incorrect data into a computer system then you will get incorrect results out of it. Processing incorrect inputs will produce incorrect outputs. This leads to the acronym: GIGO: Garbage In Garbage Out Sometimes incorrect data can actually cause a computer system to stop working temporarily. This is a particular problem in batch processing systems when data may be processed overnight. If incorrect data stops a batch processing system from working then a whole night's...
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