The team of the LibreOffice conference had to organize everything without a Conference Management System (CMS) for our first conference. E.g. the proposals for the presentations had to be handled by form / email. It was not posible to edit your paper afterwards (before the closing of the cfp) or save it's text. The review team had to do it's work without an implemented workflow. Also the schedule of the conference and the creation of tracks had to be done by hand. Thus we should look for and evaluate a conference management system. This tool should be free software and fulfill our needs. Therefor we need a list of requirements for such a conference management system.