Question

i am writing a client/server application. Now i want to do some basic diagrams about the communication, but I don`t know which kind UML-diagram i should choose. It should be really basic without going much into detail, only fundamental procedures.

The only diagram that comes to my mind is the sequence diagram, but i don`t think it is sutable for this purpose.

Am i forgetting a diagram? Or is none UML-diagram suitable for this?
What kind of diagram would you advise me to use?

Answer 1

Well, it depends a bit on what you want to document:

• if it’s message order, sequence diagrams are really the way to go
• if the focus is on who exchanges messages with whom (and maybe their roles in the communication), use communication diagrams
• if you want to describe what messages can be exchanged between client and server (i.e. the message API), use component diagrams to describe the general client/server interface and class diagrams to flesh out the message details of the interface.