Answer:
To evaluate the overall performance of an employee.
Step-by-step explanation:
Given that the Performance Appraisal is a systematic analysis and assessment of both the single employee or the group of employees as a whole
Hence, the basic purpose of a performance appraisal system is to evaluate and assess the overall performances of employee(s), or team, specifically in the area of work responsibilities, assignments, workplace affair, leadership skills, and potentials.