Architectual Design - Design Model (Classes and Subsystems)

Here are three design class diagrams depicting the design classes and subsystems associated with the three use-cases that we chose to expand upon. Our analysis classes were already broken down to their lowest levels, so the design classes were not able to be split, but only mapped directly into design classes. Only the database components of our system were modeled as a subsystem. Further analysis failed to combine or convert other design classes into subsystems.