Q:

How to show in a class diagram that i'm using external API

I'm writing a program that using some of the GoogleMaps API.
How to show this in my class-diagram?
Thanks.

A:

Depending on details, of course, I'd probably do it something like this:

You might use the <<External>> stereotype, you might not.  You might use a fully qualified class name for the Google Maps package (com::google::googlemaps or whatever) and/or interface, you might not.

