Verifier (other)
Verifier can refer to: * A machine, such as the IBM 056, used in two pass verification * The Verifier, a type of fuel gauge See also * Verification (other) Verify or verification may refer to: General * Verification and validation, in engineering or quality management systems, is the act of reviewing, inspecting or testing, in order to establish and document that a product, service or system meets ...

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. The IBM 056 and 059 Card Verifiers were companion machines to the IBM 026 and 029 keypunches, respectively. The later IBM 129 keypunch also could operate as a verifier. In that mode, it read a completed card (record) and loaded the 80 keystrokes into a buffer. A data entry operator reentered the record and the keypunch compared the new keyst ...
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The Verifier
The Verifier refers to a proprietary fuel gauge technology, used for advanced measurement of heating oil in residential and commercial tanks ranging from 1,000 – 20,000 gallons. First developed in 2005, by U.S. Energy Group’s Jerry Pindus, Verifier technology was granted Patent Approval 11/095,914 as “The Verifier Digital Fuel Gauge” from The United States Patent and Trademark Office on September 21, 2007. The Verifier is also ETL SEMKO certified. Technology The Verifier makes use of ultrasound technology, a method of using high-intensity acoustic energy which is above the limits of human hearing. Just as it has done for other fields, ultrasound technology offers unprecedented access and accuracy with The Verifier.“Ultrasound Technology Offers Precise Delivery Information,” Real Estate Weekly, July 18, 2007 The old system of measuring oil deliveries and inventory involves either climbing onto the tank and ‘sticking it’ with a ruler or pumping air into a petrometer ...
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