risk-based testing 2
https://getsoftwaredevelopmentteamden.solsticebrief.com/posts/why-every-software-development-team-needs-a-dedicated-qa-tester
Risk-based testing means focusing your testing efforts on the parts of a software system that could cause the most harm if they fail. Instead of trying to test everything equally, you prioritize based on the likelihood and impact of potential defects. For example, you might spend more time testing the checkout flow on an e-commerce site than a minor settings page. This approach helps deliver the most value when time and resources are limited.