"Asura system, the menu has 12 functions: vehicle management, picture scanning, gun management, report inquiry, electronic map, risk management, capacity management, waybill management, comprehensive management, waybill inquiry, settlement system and aging management. Each of us has our own login account and password, and the permissions of each account are different. Like me, I can look at the report query and the aging management after application, but I can't look at the settlement system. There are hundreds of computer software systems like this in SF. "