UCCASS is a PHP based survey system that allows unlimited surveys, questions and answers. Results are shown in simple bar graphs, tables or can be exported to CSV files. Questions can be hidden or required based upon answers to previous questions and can include answers to previous questions in the text (called Loopbacks). v1.8.0 adds access control for all surveys. Access to create, take, edit and view results of surveys can be limited to specific users (by username and password or email invitation), cookies or IP address.