Impact of information technology in banking systems and security

I want good information about:
Analyse how banking systems in are designed, built, maintained, secured.
Analyse the impact of Information Technology in the banking
business ().
Research how much emphasis banks () place in IT banking systems and security.
Research the investment that is done in the Information
Technology in banks.
Produce a system whereby, it can audit the effectiveness of
the design of banking systems and security.
Analyze and point out what kind of configuration management is used in secured networks of some banks ().