[shassinger]

I'd love to see an OSI-style diagram of the banking stack

[tomblomfield]

Jack Gavigan took a shot at a high-level picture a year or two ago - http://jackgavigan.com/2014/04/14/disruptive-bank/

And Microsoft publish a "reference architecture" - http://download.microsoft.com/download/C/5/F/C5FCCA52-1056-4...