Understanding the difference reviewees and reviewers in a Review Cycle.
There are two ways employees can participate in a Review Cycle, as Reviewees or Reviewers.
Reviewees

A reviewee is a person who is being reviewed or receiving a review. A reviewee is not necessarily also a reviewer.
Reviewers

A reviewer is a person who has a review to complete. A reviewer will be prompted to complete a review when visiting their profile page. A reviewer is not necessarily also a reviewee.
The progress highlighted below corresponds to how many reviews reviewers have submitted out of the total number of reviews they are supposed to write.
Quick Note: A self-assessment is considered a review. If someone needs to complete a self-evaluation, they will be both a reviewer and a reviewee.