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Examining safety and security - accuracy checks
Member rating: No Rating | Words: | Submitted: Wed Aug 20 2003
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ELEMENT C4 IS TO EXAMINE SAFETY AND SECURITY ISSUES Accuracy Checks Accuracy checks must be applied to data handling activities. All data that is entered into ANY computer is useless if it is incorrect or inaccurate. A common phrase used in the computer world is 'garbage in, garbage out'. Manual systems lack accuracy checks that are available on computerised systems and so rely heavily on the operator to proof-read and check visually. The purpose of "Accuracy checks", such as a spell-checker on MS WORD is to reduce errors, Although errors are not eliminated completely. Validation "Valid" is another word for suitable. Certain things must be suitable or valid for their purposes. If you insert a Tesco club card into a cash withdrawal machine you will not get a response because it is not VALID for its purpose. So what is the relevance for a computer system? Two very important validation checks are type and...
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