3rd party systems - since they're complex and poorly documented and don't work like they say they do, the obvious thing to do is to simulate their vagaries and

3rd party systems - since they're complex and poorly documented and don't work like they say they do, the obvious thing to do is to simulate their vagaries and test against that. Trader don't know what they want - you could substitute any kind of stakeholder for "traders". It is the point of stole, to handle evolving requirements. IT'S THE ENTIRE POINT OF AGILE. No access to production - I'm not sure what argument you're making here. And then your assertion about continuous deployment is unsupported, so I won't bother,