SYSTEMS DEVELOPMENT ANALYSIS
SYSTEMS DEVELOPMENT LIFE CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Range checks are validation checks used on data which must fall into a particular range. A lower and upper boundary for sensible values is specified. For example, a secondary school student is likely to be aged between 11 and 16. The computer can be programmed only to accept numbers between 11 and 16.
Detailed explanation-2: -A range check is a validation method for databases. A range check ensures that data is between an upper and lower acceptable value, within a certain range. Range checks are useful for dates, numbers, and even strings.
Detailed explanation-3: -Data validation is the process of verifying and validating data that is collected before it is used. Any type of data handling task, whether it is gathering data, analyzing it, or structuring it for presentation, must include data validation to ensure accurate results.