These groups can be used to define fine grained [[TWikiAccessControl]] in %WIKITOOLNAME%: # TWiki Installation Error Incorrect format of searchformat template (missing sections? There should be 4 %SPLIT% tags)
**IMPORTANT NOTE:** Think twice before restricting write access to a web or a topic, because an open system where everybody can contribute is the essence of the [[WikiCulture]]. Experience shows that unrestricted write access works very well because: - There is enough peer pressure to post only appropriate content. - Content does not get lost because topics are under revision control. - A topic revision can be undone by a member of the [[TWikiAdminGroup]] in case it needs to be. **_Related topics:_** [[TWikiAccessControl]], [[WebPreferences]], [[TWikiUsers]], [[WikiCulture]]