SAP R3 and AII RFID integration Questions

HI everybody,

Iam going to work with RFID project, so can anyone help me in doing this project by providing appropriate Business scenario

what kind of data we will store in SAP ?

what kind of IDOCs and RFCs we will use ?

manly how many systems we will use ?

what kind of mappings we will use here ?

any difficulties in XI with this project ?

Rgds

john