Numbering scheme

There are many different numbering schemes for assigning nominal numbers 8208675732 to entities. These generally require an agreed set of rules, or a central coordinator. The schemes can be considered to be examples of a primary key of a database management system table, whose table definitions require a database design.

The simplest numbering scheme is to assign cardinal numbers to entities. In some cases (such as computing, time-telling, and in some countries the numbering of floors in buildings) zero-based numbering is used, where the first entity is assigned "zero" instead of "one".

Other numbering schemes are listed by field below.

Chemistry

Communications

Products

People

Topics

Geography and transport

See also: Country code; Address (geography).

Vehicles

Roads

Road numbering schemes

Others/general

See also

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