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The '''Portland Pattern Repository''' ('''PPR''') is a repository for [[Software design pattern (computer science)|computer programming design pattern]]s. It was accompanied by a companion website, [[WikiWikiWeb]], which was the worldWorld's first [[wiki]].
The repository has an emphasis on [[Extreme Programming]]. It is hosted by Cunningham & Cunningham (C2) of [[Portland, Oregon]] at http://c2.com/ppr/. The PPR's [[motto]] is "[http://c2.com/cgi/wiki?PeopleProjectsAndPatterns People, Projects & Patterns]."
On 17 September 1987 programmer [[Ward Cunningham|Howard G. (Ward) Cunningham]], then with [[Tektronix]], and [[Apple Computer]]'s [[Kent Beck]] co-published the paper ''[http://c2.com/doc/oopsla87.html Using Pattern Languages for Object-Oriented Programs]''. This paper about programming patterns was inspired by [[Christopher Alexander]]'s architectural concept of "patterns". It was written for the [[1987]] [[OOPSLA]] programming conference organized by the [[Association for Computing Machinery]]. Cunningham's and Beck's idea became popular among programmers, because it helped them exchange programming ideas in a format that is easy to understand.
Cunningham & Cunningham, the programming consultancy whichthat would eventually host the PPR on its Internet ___domain, was incorporated in [[Salem, Oregon]] on 1 November 1991 and is named after Ward and his wife Karen R. Cunningham, a mathematician, school teacher, and school director. Cunningham & Cunningham registered their Internet ___domain c2.com on 23 October 1994.
Ward created the ''Portland Pattern Repository'' on c2.com as a means to help [[object-oriented programming|object-oriented programmers]] publish their computer programming patterns by submitting them to him. Some of those programmers attended the OOPSLA and [http://st-www.cs.uiuc.edu/~plop/ PLoP] conferences about object-oriented programming, posting their ideas on the PPR and exchanging e-mail messages with Ward.
The PPR is accompanied on c2.com by the first ever [[wiki]] (– a collection of reader-modifiable Web pages) –, which is called '''''[[WikiWikiWeb]]'''''. Itand is located at http://c2.com/cgi/wiki.
==See also==
* [[WikiWikiWebDesign pattern]]
* [[History of wikis]]
* [[DesignSoftware design pattern]]
* [[WikiWikiWeb]]
*[[Design pattern (computer science)]]
==External links==
* [http://www.oopsla.org OOPSLA]
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[[Category:Software design patterns]]
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