What a wiki is
A wiki is a website that its community of readers can edit! See Wikipedia's article on wikis for more information. Wikis are a type of groupware, software to mediate interpersonal collaboration electronically.
Why we use a wiki
By integrating the ability to write as well as read, the level of skill required to edit a wiki-style website is dramatically reduced, at modest cost in design flexibility.
Help is laid out with TOC or Table of Contents. New users start at the top of the TOC and then go to the sections relevant to them, usually based on their functional role.
Roles section will show the common tasks used for users in the various roles.