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Chapter 4

7.4 Significant digit code

A significant digit code is a code that contains individual digits and letters that are
used to represent features of the coded item. The example given is one used to
describe packs of paper file dividers. 2000 is the code for the dividers and then the
10, 20, 30 represents the number of dividers in a pack.

Code Item

2000 Paper file dividers

2010 10 pack of paper file dividers

2020 20 pack of paper file dividers

2030 30 pack of paper file dividers

7.5 Faceted code

A faceted code is one that is broken down into a number of facets or fields, each of
which signifies a unit of information.

7.6 Mnemonic code

Mnemonic means something that aids the memory or understanding. This uses an
alphabetical coding rather than a numerical coding system. It is often used to
abbreviate or simplify information.

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