CODEWITHSUNDEEP
javaumlfactorysequence-diagram
XDnl
XDnl

Reputation: 470

Implicit factories in UML sequence diagrams?

The following sequence diagram models the initialisation of a FTP server, which uses a couple of factories (FtpServerFactory and ListenerFactory) to create the required objects. Unfortunately said interactions significantly increase the complexity of the diagram without adding any useful insight.

original diagram

I have drawn another sequence diagram omitting these factories, and in my opinion it looks much more clear.

simplified diagram

I wonder if it's possible to replace the <<create>> stereotype with (say) a <<factory>> stereotype to point out that the objects are instantiated by factories. Also, I'm a bit dubious about the reply messages, if it is necessary to show them or not.

Thanks

Upvotes: 1

Views: 664

Answers (1)

qwerty_so
qwerty_so

Reputation: 36295

You have the freedom to do so. Anything that serves communicating your thoughts is fine. You should in such cases add a comment (if you have no common document/glossary for it) to place a note on the diagram explaining the use of your <<factory>> stereotype.

Upvotes: 1

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