Steve Hay Steve Hay

The Power of Combining Automated and Manual Accessibility Testing

In today’s digital landscape, accessibility is no longer optional—it’s essential. Ensuring that websites and applications are usable by everyone, regardless of ability, is both a legal requirement and a core aspect of good design. Yet one misconception persists: that automated tools alone can guarantee accessibility. The reality is that real accessibility happens when automation and human evaluation work together—supported by a thoughtful process that begins long before launch day.

Pre‑Testing Planning: Build Accessibility into the Process

Accessibility should never be a last‑minute checklist item. During discovery, teams should define accessibility goals and the target WCAG conformance level, identify user personas (including people who use assistive technologies), and assign clear ownership across design, engineering, and QA. Setting expectations early reduces rework and builds a culture of inclusion from the start.

Designing with Accessibility in Mind

Accessibility must be integrated into the UX/UI design phase. Designers shape inclusive experiences by choosing compliant color palettes and typography, providing visible focus states, writing meaningful alternative text, and structuring layouts that adapt across devices and zoom levels. Close collaboration between designers, developers, and accessibility specialists results in interfaces that are both compliant and delightful.

What Automation Does Best

Automated tools—such as axe DevTools, WAVE, and Lighthouse—rapidly find repeatable, standards‑based issues like missing alt attributes, contrast errors, and invalid ARIA usage. They’re ideal for baseline audits, regression testing, and continuous monitoring in CI/CD pipelines. Automation delivers speed and consistency, but it typically surfaces only a portion of real‑world issues.

Where Manual Testing is Irreplaceable

Manual testing validates the human experience with assistive‑technology checks (NVDA, JAWS, VoiceOver), keyboard‑only navigation, and scenario‑based reviews. Testers assess whether alternative text is meaningful in context, focus moves predictably through modals and menus, forms provide clear guidance and error handling, and content remains usable at 200% zoom or more. These are areas tools can’t fully judge.

QA Before Launch: Bringing It All Together

Before release, QA teams consolidate automated scan results and manual findings, prioritize fixes, and verify accessibility across devices and assistive technologies. Documenting outcomes against WCAG success criteria and tracking regressions ensures your launch is inclusive and defensible.

Diagram alt text suggestion: “Workflow from planning and design to automated scans, manual testing, and pre‑launch QA.”

Make Accessibility a Habit, Not a Hurdle

When organizations combine planning, inclusive design, automated scanning, and manual verification, accessibility becomes part of everyday practice—not an afterthought. The result is digital products that are usable, compliant, and equitable by design.

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