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A library bookshelf in Hong Kong classified using the New Classification Scheme for Chinese Libraries, an adaptation of the Dewey Classification scheme. The Dewey Decimal Classification (DDC), colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject.
Where a class in one system maps to several classes in other system, it will be listed multiple times (e.g. DDC class 551). Additional information on these classification plans is available at: Dewey Decimal Classification—high level categories, with links to lower level categories; Library of Congress Classification—high level categories
List of Dewey Decimal classes. The Dewey Decimal Classification (DDC) is structured around ten main classes covering the entire world of knowledge; each main class is further structured into ten hierarchical divisions, each having ten divisions of increasing specificity. [1] As a system of library classification the DDC is "arranged by ...
Like the Library of Congress Subject Headings, Sears' system is a subject list arranged in alphabetical order, making use of overarching subject categories and hierarchical subject subdivisions. However, Sears' headings favor natural language. Her headings make use of only four types of headings: topical, form, geographic, and proper names.
The dotted-decimal section-numbering scheme commonly used in scientific and technical documents is defined by International Standard ISO 2145. A document may also be considered to be divided into sections by its headings and subheadings, which may be used for a table of contents.
The Harmonized Commodity Description and Coding System, also known as the Harmonized System (HS) of tariff nomenclature is an internationally standardized system of names and numbers to classify traded products. It came into effect in 1988 and has since been developed and maintained by the World Customs Organization (WCO) (formerly the Customs ...
BISAC Subject Headings. The BISAC Subject Headings are a method to classify books that is geared towards bookstores. It is mainly used by the Northern American booktrade, and online sellers like Barnes & Noble, Amazon and Baker & Taylor. The Book Industry Study Group maintains the BISAC system. [1]
There are 6 General Rules in all, which must be applied in consecutive order. GRI 1 prescribes how to classify products at the 4-digit Heading level, based on the wording of the headings and the relative HS Section and Chapter Notes. GRI 2 prescribes how to classify both incomplete and unassembled goods, and mixtures and combinations of goods.