How do you manage and evaluate job performance as a management system?

Performance management is the process that a manager introduces to involve employees in achieving goals, improving overall effectiveness, and making the employees to understand the importance of their contributions. The main contribution of a manger includes in identifying duties that each employee is expected to achieve, skills required to be successful in a position, to make sure that employees have required competencies, provide feedback on how employees are applying skills to achieve goals and reward performances. Taking corrective measures if the performance does not meet established requirements.