The wiki is used by the professional fire services of Berlin, Kaiserslautern, Wuppertal and many voluntary fire services in Germany. open|SchulPortfolio is a German project aimed at the internal management of schools. It has been created with input from the ministry of education of the German state of Baden-Würtemberg. ICKEWiki is a redistribution of DokuWiki with a focus on the use in enterprises. It was originally developed in a research project focusing on adding structured data to wikis and making it more usable in industrial production companies. As required by DokuWiki's license these projects are all licensed under the GPL version 2. Notable uses DokuWiki is used by various public and non-public wiki setups. Below is a list of more notable uses PHP Programming Language XFCE Desktop Environment OpenWRT Router Software Slackware Linux Distribution SouthEastern Railways Notes See also List of wiki software Comparison of wiki software References Further reading External links Free wiki software Technical communication tools