Everything about Two-pass verification
Two-pass verification, also called double data entry, is a data entry quality control method that was originally employed when data records were entered onto sequential 80-column Hollerith cards with a keypunch. In the first pass through a set of records, the data keystrokes were entered onto each card as the data entry operator typed them. On the second pass through the batch, an operator at a separate machine, called a verifier, entered the same data. The verifier compared the second operator's keystrokes with the contents of the original card. If there were no differences, a verification notch was punched on the right edge of the card. Wikipedia →
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- Read the overview: Two-pass verificationA 5-minute orientation
- Pick up a classic book: Cartesian meditationsThe most-reprinted book on the subject
- Go sideways: KeypunchA closely related topic
- Go sideways: InforexA closely related topic
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🗂️ The subject at a glance
🏆 Landmark papers (most cited)
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đź“š Books worth reading
Cartesian meditationsEdmund Husserl, Dorion Cairns · 1960
Statistical Atlases and Computational Models of the Heart. Imaging and Modelling ChallengesOscar Camara · 2012
The Conspirators HierarchyJohn Coleman · 1992
Treaty Occupationay ToxicologySuelen Queiroz · 2010
SystemVerilog for VerificationChris Spear · 2006
Advances in Knowledge Discovery and Data MiningJian Pei · 2013
IFM'99Keijiro Araki · 1999
The InversionRavi Vale · 2026
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
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