What does "input validation" mean?

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Because users do not always enter valid data, a program should always check its input to ensure the user has entered acceptable information. This is known as input validation.

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New equipment to read 96-bit product codes that are replacing old bar codes has just been purchased by General Food Stores. As a trial, 1000 of the items will be initially purchased. For book depreciation purposes (not tax), the total invest­ment of $50,000 will be written off over a 4-year period, with no salvage value, by applying one of three methods—SL, 1.75% DB, or DDB. The ob­jective is to have the largest amount of accumu­lated depreciation after 2 years, in order to mini­mize the lost depreciation if it is again necessary to purchase new-technology readers prior to the end of the 4-year useful life of the readers just purchased. You know that the answer is the DDB method, but you must graphically demonstrate this result to your supervisor. Use a spreadsheet to do so.

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Quality deals not only products and services but also includes people, processes, and environments.

How is net oil pressure computed?

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What is the most critical part of connecting a wye-delta starter?

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