The primary functionality of PolyGrade is for managing and viewing student grades. PolyGrade operations are performed by instructors, Teaching Assistants and students in their own instances of the application.

Following an overview of the PolyGrade user interface, details of system use are presented in the following scenarios:

• instructor sets up a grade sheet
• instructor sets up and manages a class roster
• instructor adds and edits graded items
• grade sheet provides certain functionality
• graphs visualize grades in the class
• students have specific functions
• administrators and users all connect to the system
• file and edit commands allow system interaction
• certain error conditions may come about