Double-Entry Verification

Double-entry verification—also known as double data entry or dual data entry—is a data quality control process in which the same information is entered independently twice, and the two entries are then compared to identify discrepancies. Its purpose is to detect human transcription errors, particularly when data is captured from paper forms, scanned documents, handwritten notes, or other source records. Unlike ordinary validation, which checks whether a value is valid, double-entry verification checks whether it was entered accurately. For example, the value 27 passes a numeric validator even if the source document says 72. Read more...