Architecture of nopCommerce

I'm planning to give a presentation of the key architectural aspects of nopCommerce.
I have the following topics
-Data Access
-Authorization
-Validation
-Plug-Ins
-Localization
-Themes
-Configuration
-Cache
-Entity Model
-Testing
Have I missed anything?

GaryA wrote:

This looks like a pretty thorough list.

GaryA wrote:

Where are you giving the presentation? I'd be interested in coming...

Sorry wanpac - it will be an internal presentation.

I would also be interested in it

i would be very very interested also