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The Grading Scale

• A = a user can fully use all functions of the application
• B = a user can perform most functions using the prescribed methods of interacting with the application
• C = a user can perform many functions, but must rely on non-prescribed methods of interacting with the application
• D = a user can perform some basic functions, but most functions are unavailable or there are other significant problems
• F = a user cannot use even basic functions of the application