(PERT) A method uSed to Size a Software product and calculate the Standard Deviation (SD) for riSk aSSeSSment. The PERT equation (beta diStribution) eStimateS the Equivalent Delivered Source InStructionS (EDSIS) and the SD baSed on the analySt' S eStimateS of the loweSt poSSible Size, the moSt likely Size, and the higheSt poSSible Size of each computer program component (CPC). (1996-05-29)