there is no chance in hell that you'll have time to make a database of every single bank and its system Perhaps you need something with web-like or Wiki-like a

there is no chance in hell that you'll have time to make a database of every single bank and its system Perhaps you need something with web-like or Wiki-like adoption characteristics. If just a few customers from each bank could contribute the logic to access it to a larger site then soon all the banks with any customers will be accessable.