Changes

*2 a : [[systematic]] arrangement in [[groups]] or categories according to established [[criteria]]; specifically : [[taxonomy]]  

*2 a : [[systematic]] arrangement in [[groups]] or categories according to established [[criteria]]; specifically : [[taxonomy]]  

:'''''Class(es)'''''

:'''''Class(es)'''''

*3:a: a body of students meeting regularly to study the same subject  

*3:a: a [[body]] of [[students]] meeting regularly to [[study]] the same subject  

:b : the period during which such a body meets  

:b : the period during which such a body meets  

:c : a course of instruction  

:c : a [[course]] of instruction  

:d : a body of students or alumni whose year of graduation is the same

:d : a body of students or alumni whose year of [[graduation]] is the same

*2a : a group sharing the same economic or social status <the working class>  

*2a : a group sharing the same [[economic]] or [[social status]] <the working class>  

:b : social rank; especially : high social rank  

:b : social rank; especially : high social rank  

:c : high quality : elegance <a hotel with class>

:c : high [[quality]] : elegance <a hotel with class>

*3: a group, set, or kind sharing common attributes: as a : a major category in biological taxonomy ranking above the order and below the phylum or division  

*3: a [[group]], set, or kind [[sharing]] common [[attributes]]: as a : a major category in [[biological]] [[taxonomy]] ranking above the order and below the [[phylum]] or division  

:b : a collection of adjacent and discrete or continuous values of a random variable  

:b : a collection of [[adjacent]] and [[discrete]] or [[continuous]] values of a [[random]] [[variable]]

 

==Description==

==Description==

A [[library]] '''classification''' is a [[system]] of coding and organizing [[library]] [[materials]] ([[books]], serials, audiovisual materials, computer files, maps, [[manuscript]]s, realia) according to their subject and allocating a call number to that [[information]] [[resource]]. Similar to classification systems used in [[biology]], bibliographic classification systems [[group]] [[entities]] together that are similar, typically arranged in a [[hierarchical]] tree [[structure]]. A [[different]] kind of classification system, called a [http://en.wikipedia.org/wiki/Faceted_classification faceted classification] system, is also widely used which allows the assignment of multiple classifications to an object, enabling the classifications to be ordered in multiple ways.[http://en.wikipedia.org/wiki/Library_classification]

A [[library]] '''classification''' is a [[system]] of coding and organizing [[library]] [[materials]] ([[books]], serials, audiovisual materials, computer files, maps, [[manuscript]]s, realia) according to their subject and allocating a call number to that [[information]] [[resource]]. Similar to classification systems used in [[biology]], bibliographic classification systems [[group]] [[entities]] together that are similar, typically arranged in a [[hierarchical]] tree [[structure]]. A [[different]] kind of classification system, called a [http://en.wikipedia.org/wiki/Faceted_classification faceted classification] system, is also widely used which allows the assignment of multiple classifications to an object, enabling the classifications to be ordered in multiple ways.[http://en.wikipedia.org/wiki/Library_classification]