The major organizational elements of a TWiki site are page groupings called webs (aka workspaces). Each web can contain an unlimited number of topics, which in turn can contain practically anything: dialogs, images, tabular material, or forms
Any user can create a new topic, but only an authorized administrator can add a new web
Has revision control where all changes to pages and attachments are tracked, and previous versions can be recalled
Permission settings for groups and users, including read, write, and editing access can be controlled
Individual pages can be renamed, moved and deleted through the browser although page-by-page settings for who can edit can be established
Anyone can add content, change what is written, or change the way the content is organized if page-by-page settings are not established
Has web-based user registration and change of password
There are four levels of preferences: TWiki site-level preferences; preferences for each web; user-level preferences; and, page level preference
If more than one user edits a page at the same time the content will be automatically merged
Has full search capability
If the content changes email notification can be automatically sent
