6425e794_on_for_Tiki_Wiki_CMS_Groupware__Description
[Feature name and link] Category [Setup and admin UI] B [UI end user] B [Stability] B [Feature-set and power] A [Description] 
Global category system. Items of different types (wiki pages, articles, tracker items, etc) can be added to one or many categories. Categories can have permissions.
Features | Documentation for Tiki Wiki CMS Groupware
Description