A Reviewer is a type of Person who has been assigned Submissions that
need to be graded, scored and commented on as part of a peer review, judging or other review process.
Any number of Reviewers can be added to a project (See Adding Reviewer).
Reviewers are defined and controlled by the Reviewing Type.
Once reviewers have be added to a project, they can be Assigned to
Submissions in order to create Reviews.
Reviewers can then log in and edit the Reviews using a review
Form which they access from the MyReviews dashboard.