logical computer
9.In this paper some developing methodes are analysed and compared,and PM-SDLC is thought of as more effective method. Command system of artillerygroup was analysed and decomposed by using PM-SDLC and process /data matrix analy-sis to build general logical model of the system,In this paper the measure for systemconfig uration ,computer communication and software structure to improve system re-sponse and rellability is presented.

