360 feedback, also known as multi-rater feedback or multi-source feedback, is a performance appraisal method that involves gathering feedback from multiple sources, including peers, subordinates, supervisors, and sometimes customers or other stakeholders. It provides a comprehensive view of an individual's performance by collecting feedback from different perspectives. The feedback is typically collected through surveys or assessments that assess various competencies, skills, and behaviors. The purpose of 360 feedback is to provide a well-rounded assessment of an individual's strengths, weaknesses, and development areas, which can be used for performance improvement and professional development.