أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Separation of duties requires that the person responsible for balancing the payroll account must be different from the person issuing the payroll checks.
It means two concept , First Operation , meaning to make every one hold part in a company , Second Audit and control , meaning not to let one person be the Key for any Job , but make sure that not one have all the control for the company.