1. SafeMessage System Team 4: Luke Skorupski and Matt Roth

2. Introduction Purpose Purpose Secure messaging for bankers, brokers, lawyers and other professionals Secure messaging for bankers, brokers, lawyers and other professionals Functional Requirements Functional Requirements Three security levels Three security levels Message sending Message sending Broadcasting Broadcasting Non-functional requirements Non-functional requirements Security Security Unspoofable between machines Unspoofable between machines Guarantee of delivery Guarantee of delivery Concurrency Concurrency

3. Use Case

4. Conceptual Model

5. User-based Class Model

6. Interface-based Class Diagram

7. Profiles and Scenarios

8. Detailed Class Diagram

9. Sequence Diagrams

10. Sequence Diagrams (cont.)

11. State Diagram

12. SafeMessage System Team 4: Luke Skorupski and Matt Roth