這個工具集提供以下結構化分析和UML分析中所用的圖形化繪圖工具：ER-diagrams, data and event flow diagrams and state-transition diagrams，class-diagram editor, a use-case diagram editor and an activity diagram editor
The OpenGPSRec receiver software runs on the real time operating system RTAI-Linux. It compiles with gcc using a RTAI-patched linux kernel. linux下的GPS
開放源碼～！
