[jajko]

Also this goes beyond just ERP - core banking packages like Temenos or Avaloq are the same. They have something called 'model bank' which is some default simple model of common expected behaviors, workflows etc.

But almost none of the banks actually work like that, apart form some small insignificant shops which can't afford such customization. Each has some unique stuff that makes it better than most competition in that area. Behemoths of banking world run their pretty unique things, workflows, specific jurisdiction reporting etc. so each of them have more or less massive customization on top of basic common stuff.

I guess it goes without saying almost constant flow of changes, either from business or regulators keeps hefty IT teams busy to maintain that customization and ensure things keep working. Also logically the complexity has only one direction to go, and so it goes, slowly but surely.

I am not even sure if business properly realizes all this, maybe they do or maybe they are kept in continuous cloud of bullshit from IT managers who of course want to preserve their jobs and importance (headcount, impact) within corporation. Anyway the prospect of migration to something else is something they (rightly) detest and want to avoid if possible, since costs and duration are massive, potential issues tremendous and backbreaking, and there is absolutely no guarantee of success.

[netdevnet]

> I am not even sure if business properly realizes all this

It definitely doesn't, as in the top directors likely don't. It is likely that they brought in some kind of consultant who sold them this solution to the higher ups against the protests of the lower managers