Error Checking Guides
Identifying discrepancies between data sets
Transposition Errors
Adjacent characters are swapped in position.
View Guides →Substitution Errors
One character is replaced with a different character.
View Guides →Omission Errors
One or more characters are missing from the data.
View Guides →Addition Errors
Extra characters are accidentally inserted into the data.
View Guides →Double Transposition
Two separate pairs of adjacent characters are swapped.
View Guides →Visual Confusion
Similar-looking characters are mistaken for each other.
View Guides →Keyboard Proximity
A character is replaced by an adjacent key on the keyboard.
View Guides →Repeated Character
A character is accidentally typed twice in succession.
View Guides →Reversal
A sequence of 3 or more adjacent characters is reversed.
View Guides →Spacing Error
An unwanted space is inserted into the string.
View Guides →Format Shift
A separator or delimiter is moved to an incorrect position.
View Guides →Phonetic Substitution
A character is replaced by a similar-sounding character.
View Guides →Case Flip
A letter's case is changed from uppercase to lowercase or vice versa.
View Guides →Rule Validation
Checking whether a record conforms to a set of format, range, type, or business rules.
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