The Specify Appliance contains Specify software with web server and remote access software for GUI interface. Specify thin client runs a web server so that users can access Specify through web browser. The thin client is currently under active development, planning to release with Specify 7 and has only frequently used features such as data entry and query. The thick client is a full-featured Specify, meaning that there are no functional restriction. But it does require the GUI interface so that you need to access java-applet either through the web browser or VNC viewer.