Alpha Release will be a fully functional system in which grades can be inputed into the system and viewed. All appropriate users will be able to input and view grades. Note that "viewing grades" here means viewing only the grades themselves (i.e. HW1 = 25/28, Exam 1 = 98/100, etc.)
Beta Release
Beta Release will be a fully functional system in which statistics of entire class grades can be viewed. This includes graph distribution of grades in classes, percentage rank in the class, letter grade cutoffs, and other statistics (mean, median, range, etc.).
Final Release
The final release will include a windows-like GUI and will manage grades for only one semester and not all semesters.