▁an ▁inputs , ▁outputs ▁and ▁the ▁energy ▁required ▁to ▁transform ▁inputs ▁to ▁outputs . ▁ ▁Process ▁architecture ▁is ▁the ▁struct ural ▁design ▁of ▁general ▁process ▁systems ▁and ▁applies ▁to ▁fields ▁such ▁as ▁computers ▁( software , ▁hardware , ▁networks , ▁etc .), ▁business ▁processes ▁( enter prise ▁architecture , ▁policy ▁and ▁procedures , ▁log istics , ▁project ▁management , ▁etc .), ▁and ▁any ▁other ▁process ▁system ▁of ▁varying ▁degrees ▁of ▁complexity . ▁ ▁Process ▁management ▁is ▁the ▁ensemble ▁of ▁activities ▁of ▁planning ▁and ▁monitoring ▁the ▁performance ▁of ▁a ▁process , ▁especially ▁in ▁the ▁sense ▁of ▁business ▁process , ▁often ▁confused ▁with ▁re engine ering . ▁ ▁Product ▁break down ▁structure ▁( P BS ) ▁in ▁project ▁management ▁is ▁an ▁exhaust ive , ▁hier arch ical ▁tree ▁structure ▁of ▁components ▁that ▁make ▁up ▁an ▁item , ▁arranged ▁in ▁whole - part ▁relationship . ▁ ▁Product ▁description ▁in ▁project ▁management ▁is ▁a ▁struct ured ▁format ▁of ▁present ing ▁information ▁about ▁a ▁project ▁product ▁ ▁Program ▁E valu ation ▁and ▁Review ▁Te chni que ▁( PER T ) ▁is ▁a ▁statistical ▁tool , ▁used ▁in ▁project ▁management , ▁designed ▁to ▁analyze ▁and ▁represent ▁the ▁tasks ▁involved ▁in ▁comple ting ▁a ▁given ▁project . ▁ ▁Program ▁Management ▁is ▁the ▁process ▁of ▁man aging ▁multiple ▁on going ▁inter - dependent ▁projects . ▁An ▁example ▁would ▁be ▁that ▁of ▁design ing , ▁manufact uring ▁and ▁providing ▁support ▁infrastr ucture ▁for ▁an ▁autom obile ▁manufact urer . ▁ ▁Project ▁: ▁A ▁temporary ▁ende avor ▁undert aken ▁to ▁create ▁a ▁unique