پاورپوینت برنامه ریزی پروژه قابل ویرایش:19 اسلاید قابل ویرایش:2 اسلاید انگلیسی قسمتی از اسلایدها: This is activities-on-nodes (AON) system is not widely used although it often simplifies network construction . The primary disadvantage of the AON system is that few CPM computer programs accept