COMP 504 Fall 2015	Lec31: ChatApp Interfaces...

For reference, be sure to keep in mind the design principles we discussed last time.

Considerations for today:

• To one person, in terms of RMI, what is another person (user) that the first person can send a message (data packet) to?
• What is a chat room anyway?   
• What does it mean to send a message to everyone in a chat room?
• Connection Use Case:   What happens when we first attempt to connect to another computer?
  • What must be true about the target computer before it is connected to?
  • What must be known about the Registry on the target computer?
  • What if the target computer has not connected to anyone else yet?
  • How does this change the initial connection use case? 
• What sorts of data packet types does everyone need to know about?   (One possible answer is much smaller than you think!)

© 2015 by Stephen Wong