The Main Window consists of several toolbars and panes for you to work on connections, database objects and advanced tools. If opportunity doesn’t knock, build a door. In a Telnet session, all communications, including username and password, are transmitted in plain-text, allowing anyone to listen-in on your session and steal passwords and other information. Navicat Data Modeler enables you to build high-quality conceptual, logical and physical data models for a wide variety of audiences.