Why HR or Personnel doing warning tasks against the employee without evaluating the case or evaluating employee career to see if he is doomed or not?

Of the functions of human resource management is to evaluate the performance of employees and work to develop and improve the performance of their and Agah annual assessment report performance saluting that this performance benefit the human resources department with information about the employee and motivate the administration to decide the installation or upgrade or grant bonuses or dismissal from work, so the alarm is Kai further action is required to be a warning in writing and duration not exceeding 3 months must department administration any HR aware of the direct head of the worker ---- and must resort to direct the president and the granting of alarm and signed by the worker personally and voluntarily and is filed archives any personal factor file However, that warning industrious worker and Moazb Aaahram to the labor Law and the Regulations of all allowances and other privileges to his colleagues