Hi!

I did not found enough information to understand the approach of how MM framework works as n-tire. I require to know following things:

1. The way of communication between server objects and client side in n-tire application. How data transferred over Internet? As I see, framework supports XML, ADO and HTML with outside world. What is used inside?
2. Server objects model and business objects abilities. Specially, I interested how updates made in n-tire model (in scenario client -> server (here is a wuestion ???) -> backend)
3. The way of how server objects query data from SQL Server (ODBC or ADO + OLE DB, or otehr approaches?).
3. Some speed parameters (for example difference between speed of the direct query to SQL Server and speed of the data query through all objects chain in n-tire model, same for updates).

Can someone help me with that or point to appropriate articles?
Should I buy the MM product to investigate these questions?