Final answer:
The rating chain is typically approved by a higher authority, such as a supervisor or manager. In some organizations, this may be the HR department or a designated rating committee.
Step-by-step explanation:
The rating chain is typically approved by a higher authority, such as a supervisor or manager. In some organizations, this may be the HR department or a designated rating committee. They review the ratings given by supervisors to ensure fairness and consistency. The approval process ensures that the ratings are objective and based on performance criteria and not biased or influenced by personal opinions.