E-mail Use Case Diagram

1
E-mail Use Case Diagram
Send E-mail
Receive E-mail
Address Book
Organize Mail

• Search
• Sort
• Folders

• Delete
• Archive

2
Chat Use Case Diagram
Log On
Buddy Status Change
Find Buddy
Chat Buddy
Log Off
3
User (UI)
Client
Server
getEmails()
authenticateUser()
response

• Authentication Failed
• Server Unreachable
• Authentication Suceeded

response
queryNumberEmails()
displayResponse
numberEmails
messages left gt 0
loop
getMessage()
message
Receive E-mail Sequence Diagram
filterMessage
addMessageToFolder
addMessageToFolder
sortMessageFolders
displayNewMessageFolders()
4
User IM
Server
Buddy IM
statusChange()

• AWAY
• INACTIVE

• AVAILABLE

ack
buddyStatusChange()
ack
changeBuddyStatus()
Buddy Status Change Sequence Diagram Lassiez-Faire
Approach
5
User IM
Server
Buddy IM
par
checkBuddyStatus()
loop
findBuddiesForUser()
determineChangedBuddies()
changedBuddies()
NOTES Add timing requirements to server messages
check. Throughput consequences of polling?
buddies left gt 0
loop
changeBuddyStatus()
Buddy Status Change Sequence Diagram Polling
Approach
statusChange()

• AWAY
• INACTIVE

• AVAILABLE

ack
6
User IM
Server
Buddy IM
startChat()
startChat()
chatStatus()

• SERVER UNAVAILABLE
• INACTIVE
• AWAY

• REFUSED
• ACCEPTED

chatStatus()
done false
loop
par
Send IM
Receive IM
Change Status
Buddy Status Change
Chat Buddy Sequence Diagram
7
User IM
Server
Buddy IM
not SEND
loop
getKeyboardCharacter()
sendMessage()
displayMessage()
ack()
Chat Send IM Sequence Diagram
8
authenticateUser
numberMessages
queryNumberEmails
getMessage
processEmails
filterMessage
sortMessageFolders
addMessageFolder
displayMessageFolders
Receive E-mail Software Execution Model
9
authenticateUser
numberMessages
queryNumberEmails
getMessage
processEmails
filterMessage
sortMessageFolders
addMessageFolder
displayMessageFolders
Receive E-mail Software Execution Model
10
startChat
sendIM
20
receiveIM
changeStatus
buddyStatusChange
endChat
Chat Buddy Software Execution Model