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2.3 - producing robust programs - Coggle Diagram
2.3 - producing robust programs
authentication
a coding method to check that a user is who they say they are and allowed to access the program
validation
a check made by a computer to ensure that the data entered is sensible or reasonable
it cannot check that it is correct and attempts to ensure that it is within certain limits or rules
checking methods
check digit
checks the digits are correct
format check
checks the digit is in the right format
length check
checks that the data isn't too short or long
lookup table
looks up acceptable values in a table
presence check
checks that the data has been entered into a field
range check
checks that a value falls within the specified range
spell check
looks up a word in a dictionary