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  2. Disclosure and Barring Service - Wikipedia

    en.wikipedia.org/wiki/Disclosure_and_Barring_Service

    The Disclosure and Barring Service (DBS) is a non-departmental public body of the Home Office of the United Kingdom.The DBS enables organisations in the public, private and voluntary sectors to make safer recruitment decisions by identifying candidates who may be unsuitable for certain work, especially involving children or vulnerable adults, and provides wider access to criminal record ...

  3. Data validation - Wikipedia

    en.wikipedia.org/wiki/Data_validation

    The batch total is entered and the computer checks that the total is correct, e.g., add the 'Total Cost' field of a number of transactions together. Cardinality check Checks that record has a valid number of related records. For example, if a contact record is classified as "customer" then it must have at least one associated order (cardinality ...

  4. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Although this number has a decimal representation that is an infinite string of ones, Excel displays only the leading 15 figures. In the second line, the number one is added to the fraction, and again Excel displays only 15 figures. In the third line, one is subtracted from the sum using Excel.

  5. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    The program operates on data entered in cells of a table. Each cell may contain either numeric or text data, or the results of formulas that automatically calculate and display a value based on the contents of other cells. The term spreadsheet may also refer to one such electronic document. [5] [6] [7]

  6. Check digit - Wikipedia

    en.wikipedia.org/wiki/Check_digit

    The final character of a ten-digit International Standard Book Number is a check digit computed so that multiplying each digit by its position in the number (counting from the right) and taking the sum of these products modulo 11 is 0. The digit the farthest to the right (which is multiplied by 1) is the check digit, chosen to make the sum correct.

  7. Flat-file database - Wikipedia

    en.wikipedia.org/wiki/Flat-file_database

    Plain text files usually contain one record per line. [2] Examples of flat files include /etc/passwd and /etc/group on Unix-like operating systems. Another example of a flat file is a name-and-address list with the fields Name, Address and Phone Number. Flat files are typically either delimiter-separated or fixed-width.

  8. Checksum - Wikipedia

    en.wikipedia.org/wiki/Checksum

    The simplest checksum algorithm is the so-called longitudinal parity check, which breaks the data into "words" with a fixed number n of bits, and then computes the bitwise exclusive or (XOR) of all those words. The result is appended to the message as an extra word.

  9. National identification number - Wikipedia

    en.wikipedia.org/wiki/National_identification_number

    The individual number and the check digits are collectively known as the Personal Number. The individual number has been selected from a range depending on century of birth: for the years 1854–1899 the range is 500–749, for the years 1900–1999 the range is 000–499, for the years 2000–2039 the range is 500–999.