Help
What is the 4 Layer Architecture?
The 4 Layer Architecture is OutSystems' recommended reference architecture you should use when build applications.
You may find a presentation done in OutSystems Next Step 2012 that explains what it is and its benefits.
You can also find more information about the usage of modules and the Layered Architecture in OutSystems online training 
Why the Electronic Canvas?
Traditionally we've been using the OutSystems architecture canvas printed in huge A0 format which we put on walls and then use post-its.
Sometimes you don't have a huge canvas, sometimes you don't have space and sometimes the post-its fall :) so I implemented this tool to have a digital version of my canvas
How do I use this Electronic Canvas?
You can create projects and then modules for which you must specify a set of properties (Name, Layer, Position, etc).

You have a backoffice to manage the projects and modules or after creating the project you can go to the canvas page and use your mouse.
The modules are draggable and you have a right click menu that help you to perform some actions (except delete and edit for now) 
Does this application interact with my actual applications?
No. This application allows you to create conceptualized architectures but does not interact with your OutSystems meta-module.

To help you show what you have and also to validate the rules and your architecture you should use the Discovery Application available on forge  
Click here to see your activities