The purpose of doing a UX review is to ensure the end user experience matches the design intent. This can catch edge cases or unintended behaviors (particularly, micro-interactions) that were not considered or noticed previously.
A UX review is performed once development is done, and is completed within the Development environment after pull requests are merged. A UX review involves:
checking entry and exit points to/from the screens associated to a user story
reviewing the screens, task flow and associated business rules
reviewing error and validation scenarios
reviewing French translations for consistency, plain language & display issues (primarily due to length/wrapping)
cross-browser testing to ensure consistent rendering across browsers
Chrome
Safari (if possible)
Firefox
IE Edge
cross-device testing to review all responsive design elements render properly
Phone
Small (>= 768px to < 992px)
X-Small (< 768px)
Tablet
Small (>= 768px to < 992px)
Medium (>= 992px)
reviewing all pages for accessibility and WCAG A/AA compliance