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how to represent an external entity in component diagram

Aju Joseph
Greenhorn

Joined: Feb 20, 2004
Posts: 6
Hi,

Can we use and "actor" symbol to represent an external entity in component diagram. For example, I have a third party "Credit Card Authorization" system which has exposed its own interface API, and the components in my system needs to interact with that third party system. What symbol can I use to represent that third party system in my component diagram ? Can I use the usual component symbol, or an actor symbol will suffice ?

Thanks,
Aju
Jimmy Clark
Ranch Hand

Joined: Apr 16, 2008
Posts: 2187
An Actor and an External Entity are two different things. The UML symbol for an External Entity is a circle with a line under it.

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Rakesh Chaudhary
Ranch Hand

Joined: Feb 19, 2008
Posts: 120
Thats exactly what I can suggest..A lollipop symbol...For the Required Interface...

cheers


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