Wikipedia:Defining

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This page explains how to apply the the DEFINING concept in the context of Wikipedia categorization, by quoting the relevant guidance in several related guidelines.

From Wikipedia:Categorization § Defining[edit]

Here's how the DEFINING concept is described:

A central concept used in categorising articles is that of the defining characteristics of a subject of the article. A defining characteristic is one that reliable sources commonly and consistently define[1] the subject as having—such as nationality or notable profession (in the case of people), type of location or region (in the case of places), etc. For example, here: "Caravaggio, an Italian artist of the Baroque movement ...", Italian, artist, and Baroque may all be considered to be defining characteristics of the subject Caravaggio.

From Wikipedia:Categorization of people § Categorize by defining characteristics[edit]

Here's the application of DEFINING for the categorization of biographical articles:

Biographical articles should be categorized by defining characteristics. As a rule of thumb for main biographies this includes:
  • standard biographical details: year of birth, year of death and nationality
  • the reason(s) for the person's notability, a.k.a. the characteristics the person is best known for.
For example, a film actor who holds a law degree should be categorized as a film actor, but not as a lawyer unless his or her legal career was notable in its own right and/or relevant to his acting career. Many people had assorted jobs before taking the one that made them notable; those other jobs should not be categorized.
Similarly, none of the celebrities commercializing a fragrance are listed in the perfumers category: not everything a celebrity does after becoming famous warrants categorization.

From Wikipedia:Overcategorization § Non-defining characteristics[edit]

Here's how DEFINING is applied in the context of overcategorization:

One of the central goals of the categorization system is to categorize articles by their defining characteristics. Categorization by non-defining characteristics should be avoided. It is sometimes difficult to know whether or not a particular characteristic is "defining" for any given topic, and there is no one definition that can apply to all situations. However, the following suggestions or rules-of-thumb may be helpful:

  • a defining characteristic is one that reliable, secondary sources commonly and consistently define, in prose, the subject as having. For example: "Subject is an adjective noun ..." or "Subject, an adjective noun, ...". If such examples are common, each of adjective and noun may be deemed to be "defining" for subject.
  • if the characteristic would not be appropriate to mention in the lead portion of an article, it is probably not defining;
  • if the characteristic falls within any of the forms of overcategorization mentioned on this page, it is probably not defining.

Often, users can become confused between the standards of notability, verifiability, and "definingness". Notability is the test that is used to determine if a topic should have its own article. This test, combined with the test of verifiability, is used to determine if particular information should be included in an article about a topic. Definingness is the test that is used to determine if a category should be created for a particular attribute of a topic. In general, it is much easier to verifiably demonstrate that a particular characteristic is notable than to prove that it is a defining characteristic of the topic. In cases where a particular attribute about a topic is verifiable and notable but not defining, or where doubt exists, creation of a list article is often the preferred alternative.

In disputed cases, the categories for discussion process may be used to determine whether a particular characteristic is defining or not.

See also[edit]

Notes[edit]

  1. ^ in prose, as opposed to a tabular or list form