Beyond being the first wiki wiki and the model for Wikipedia, the Portland Pattern Repository was a place where many of the principles of Agile software development were hashed out through discussion of the leading members of that movement. It was closer to the discussion pages of Wikipedia, where someone would write on a topic, and another would add more dimension or a counterpoint to what was written. Instead of creating a page of what, say, Extreme Programming was, pages full of discussion of how it was implemented on site or how it could be improved were generated; when it became too large, someone might refactor that page into several different pages, such as XP Principles, XP Practices, XP implementations, and so on.