The document discusses 180 degree performance appraisals, which involve collecting feedback about an employee's performance from a variety of sources including supervisors, coworkers, subordinates, and customers. It describes the benefits of 180 degree appraisals such as providing a more accurate and objective assessment of performance compared to traditional methods. The document also outlines different performance appraisal methods and considerations for organizations in implementing a 180 degree appraisal system.