Uml email

Here is a simple UML diagram for an Email system:

Class Diagram

• Email
  • Attributes:
    • id (unique identifier)
    • from (sender's email address)
    • to (recipient's email address)
    • subject (email subject)
    • body (email body)
    • sentDate (date and time the email was sent)
    • receivedDate (date and time the email was received)
  • Methods:
    • send() (sends the email)
    • receive() (receives the email)
• User
  • Attributes:
    • id (unique identifier)
    • emailAddress (user's email address)
    • password (user's password)
  • Methods:
    • login() (logs in the user)
    • logout() (logs out the user)
• EmailServer
  • Attributes:
    • host (email server host)
    • port (email server port)
  • Methods:
    • sendEmail() (sends an email)
    • receiveEmail() (receives an email)

Sequence Diagram

• Sending an Email
  • 1. The user (User) logs in to the email server (EmailServer)
  • 2. The user creates a new email (Email) with the desired subject, body, and recipient
  • 3. The user sends the email (Email.send())
  • 4. The email server (EmailServer) receives the email and stores it in the database
  • 5. The email server sends a confirmation message to the user

State Machine Diagram

• Email
  • States:
    • NEW (newly created email)
    • SENT (email has been sent)
    • RECEIVED (email has been received)
  • Transitions:
    • NEW -> SENT (when the email is sent)
    • SENT -> RECEIVED (when the email is received)

This is a very basic representation of an email system, and there are many more features and complexities that could be added to make it more realistic.