Requirements Engineering

Use Case Diagram

Actors Hierarchy Diagram

Besides the base actors (i.e., Unregistered User, Company, Client, Client Company), and because some of them, due to their semblance, realize the same use cases, more generalized and abstract actors are required.

Use Case	Description
UC1	Manage Provided Vehicles
UC2	View Recommended Offers
UC3	Rent Vehicle
UC4	Manage rented vehicles
UC5	View rent history
UC6	View All Rental History
UC7	View offers
UC8	Register
UC9	Manage Preferences
UC11	Manage Maintenance Services
UC12	View Inactive Clients