Car Sales System Use Case Diagram

This Use Case Diagram is a graphic depiction of the interactions among the elements of Car Sales System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Car Sales System. The main actors of Car Sales System in this Use Case Diagram are: Super Admin, System User, Customer, Agent, who perform the different type of use cases such as Manage Cars, Manage Car Models, Manage Sales, Manage Car Owners, Manage Inventory, Manage Customer, Manage Users and Full Car Sales System Operations. Major elements of the UML use case diagram of Car Sales System are shown on the picture below.

The relationships between and among the actors and the use cases of Car Sales System:

• Super Admin Entity : Use cases of Super Admin are Manage Cars, Manage Car Models, Manage Sales, Manage Car Owners, Manage Inventory, Manage Customer, Manage Users and Full Car Sales System Operations
• System User Entity : Use cases of System User are Manage Cars, Manage Car Models, Manage Sales, Manage Car Owners, Manage Inventory, Manage Customer
• Customer Entity : Use cases of Customer are View Cars, Request Quotation, Make Payment
• Agent Entity : Use cases of Agent are Add Cars, Create Quotation, View Requests, Create Invoice

Use Case Diagram of Car Sales System :