I´m writing my diploma thesis about pentaho and spent a lot of time to deploy pentaho on my server (manual deployment of pentaho).

I´m now at the point, where I would like to summarize the technical details about pentaho, pentaho plattform and the components. On this website there are a lot of general information about the architecture of the plattform but i need more detailed information. One sentence, that I found was "Check out the Developer Zone reviews for detailed technical information..."

I´m not finding the so called "developer zone"? Can someone tell me, where i can find detailed information about the pentaho plattform, about the architecture?

Thx a lot,