Remediation work ranges from quick fixes, like adding alt text or increasing a color’s contrast, to more involved changes, like rebuilding a custom dropdown with proper ARIA and keyboard support, or reworking a form’s error-handling flow. Prioritization typically follows severity and impact: issues that fully block a task for keyboard or screen reader users usually come before cosmetic contrast tweaks.
Effective remediation also includes verification, retesting each fix with the same methods (manual, keyboard, and real assistive technology) used to find the original issue, since a fix that looks right in code can still fail in practice.