[{ALLOW view All}]
[{ALLOW edit Markus}]
1. Download Eclipse

2. Add MDT project\\
Help > Software Updates... > Available Software > Add Site... 

{{{
http://download.eclipse.org/modeling/mdt/updates/releases/
}}}

see [http://www.eclipse.org/modeling/mdt/updates/]

choose "MDT UML2 SDK 2.1.1"


__or alternatively__\\

eUML2 at [http://www.soyatec.fr/euml2/installation/manager.ganymede.php]

{{{
http://www.soyatec.com/update/ganymede/
}}}