liquidThreads part of the MediaWiki Project
Core model 
The LiquidThreads core model consists of four components: Channels, Threads, Comments and Summaries.
Every article can have one or multiple subject-specific channels in which issues can be discussed. A channel can also be attached to multiple articles to which it is relevant. For Wikiversity, channels may align with Schools and/or Portals.
A thread is a collection of comments about a specific subject. It can be attached to multiple channels at the same time, moved, renamed, deleted and combined with other threads.
The author of a comment can determine if other users may edit it. (disputed) Each comment has its own version history. A comment can only belong to a single thread, but it can be moved within the thread, to another thread, or even to another channel. Each comment has its own entry in the database, and its own version history. This allows for the display/reply features mentioned above.
Each thread and each channel has its own associated summary page. When editing such a summary page, a user can request the whole wikitext of a discussion to be inserted for easy refactoring.
See also 
- Request to add the Extension:LiquidThreads to the Sandbox Server - liquidThreads
- test page Yeoman's LiquidThreads test page at Andrew's test wiki