Quality assurance in core banking is not a stage. It is a discipline embedded throughout the implementation lifecycle, from requirements through hypercare.
Shift-left or pay later
Defects caught during configuration are an order of magnitude cheaper to fix than defects caught in UAT — and two orders of magnitude cheaper than defects caught in production. Embedding QA early means writing test cases as requirements are signed off, not weeks afterwards.
Automate the regression cliff
Every Temenos release, patch and configuration change risks breaking something that already worked. Automated regression suites are the only sustainable way to keep release cycles short without sacrificing safety.
Make sign-off evidence-based
Go-live decisions should be made against documented test evidence, not against the calendar. A clear, traceable QA report gives leadership the confidence to approve — or the data to delay.