Community
Anti-wiki
Conflict-driven view
False community
Wikiculture
Wikifaith
The Wiki process
The wiki way
Darwikinism
Power structure
Wikianarchism
Wikibureaucracy
Wikidemocratism
WikiDemocracy
Wikidespotism
Wikifederalism
Wikihierarchism
Wikimeritocracy
Wikindividualism
Wikioligarchism
Wikiplutocracy
Wikirepublicanism
Wikiscepticism
Wikitechnocracy
Collaboration
Antifactionalism
Factionalism
Social
Exopedianism
Mesopedianism
Metapedianism
Overall content structure
Transclusionism
Antitransclusionism
Categorism
Structurism
Encyclopedia standards
Deletionism
Delusionism
Exclusionism
Inclusionism
Precisionism
Precision-Skeptics
Notability
Essentialism
Incrementalism
Article length
Mergism
Separatism
Measuring accuracy
Eventualism
Immediatism
Miscellaneous
Antiovertranswikism
Mediawikianism
Post-Deletionism
Transwikism
Wikidynamism
Wikisecessionism
Redirectionism

Transclusionism is the philosophy that largely duplicate content should be transcluded from one page to another (i.e. directly inserted via a template, so that it updates if the original page changes). Users who adhere to this philosophy are called transclusionists, and are opposed to antitransclusionists who prefer to copy and paste similar content.

Transclusionists argue that it is helpful for purposes of consolidation, and allows content to be updated more readily with less editor effort needed. It follows the software development principle of don't repeat yourself.

The downsides are mainly that it can sometimes marginally increase wikitext complexity and prevent minor tweaks from being made where the ideal state of pages differs only slightly. These can usually be addressed through clean coding, proper documentation, and the introduction of parameters where needed for customizability.

There are several methods of transclusion, including using excerpts and wrappers.