How to install UML plugin for Eclipse?

Question

I'm programming with Eclipse and I wanna use UML diagrams in Eclipse Indigo. I try to install either UML2 or UML2 Tools plugins but I don't succeed.

By the way, I downloaded ZIP files of EMF, XSD, UML2 SDK, UML2 Tools and extracted them then copy their files into plugins and features folders. I see installed files in Eclipse but I can't yet work with it.

I don't know what should I do. Could you tell me, please?

Answer 1

The easiest way to get a version of Eclipse with all the UML plugins is to download the Eclipse Modeling Tools distribution from this page.

Answer 2

If you only have downloaded the "plain" Eclipse Classic (and not EMT as @ChrisH suggested), go to Help->Install Modeling Components and install "Papyrus" that should get you started with UML.