Data Checking 1.0 / 5 based on 1 rating ? ICTData and InformationGCSECCEA Created by: Harriet FewsCreated on: 28-02-13 09:21 How does a check digit work? Uses the last one or two digits of a code to check that the other digits are correct. 1 of 7 What does a length check do? The length check ensures that the data entered is of the correct length (not too long or too short). 2 of 7 How does a lookup table work? A lookup table looks up acceptable values in a table. 3 of 7 What is a presence check? A presence check makes sure that data has been entered into a field. 4 of 7 What does a range check do? A range check checks to see if the data entered is within the specified range. 5 of 7 What is a format check? A format check makes sure that all data entered is in the right format (e.g. numbers and letters). 6 of 7 How does a spell check work? A spell check looks up words in a dictionary and corrects words that have been typed incorrectly. 7 of 7
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