You are going to create instance links between objects to express the collaboration between objects:
|
Source |
Destination |
|---|---|
|
Customer |
Internet Browser |
|
Internet Browser |
Application Server |
|
Application Server |
Database Server |
For more information on how to create instance links in the communication diagram, see "Creating an instance link in a communication diagram" in the Building Dynamic Diagrams chapter of the Object-Oriented Modeling guide.
You then define messages on the different instance links to express the data carried by the links.
For more information on how to create messages on instance links in the communication diagram, see "Creating a message in a communication diagram" in the Building Dynamic Diagrams chapter of the Object-Oriented Modeling guide.
You are going to create the following messages:
|
Direction |
Message name |
Sequence number |
|---|---|---|
|
Customer - Internet Browser |
Stock value query |
1 |
|
Internet Browser - Application Server |
Ask value to app server |
2 |
|
Application Server - Database Server |
Ask value to db |
3 |
|
Database Server - Application Server |
Return value from db |
4 |
|
Application Server - Internet Browser |
Return value from app server |
5 |
|
Internet Browser - Customer |
Return value |
6 |
