Eclipse Modeling for WTP

If I want to describe cinematic between my webapp, which representation is the easiest to understand :

this one:

or this one :

At Eclipse Summit Europe 2010, I do a talk to explain how Modeling can be useful to design JavaEE based applications:

• how to create some textual and graphical DSL for each layers of my webapp,
  
• how to create Acceleo based code generators for Hibernate, Struts, Spring and others frameworks,
• how to integrate everything in an Entreprise Architecture with a Togaf based designer.

Some flash demos are available to see the resulted workbench.

And here are my slides:

Eclipse Modeling for WTP