An application can pass every functional test and still fail its users. A checkout flow that works perfectly with a mouse can be impossible to complete with a keyboard alone. A form that looks fine visually can be unreadable to a screen reader if the fields are not labeled correctly. Accessibility testing is how that gap gets caught before it reaches production.
For enterprise teams, the stakes are higher than a single frustrated user. Legal exposure, a wider base of users who rely on assistive technology, and the rising cost of retrofitting accessibility late in a product’s life all make this a testing category that deserves the same rigor as functional QA.
What is accessibility testing?
Accessibility testing verifies that an application works for users with visual, auditory, motor, or cognitive disabilities. That includes confirming screen reader compatibility, keyboard-only navigation, sufficient color contrast, and support for other assistive technology such as switch controls or voice input.
The goal is not a checklist run once before launch. It is confirming that every meaningful interaction, not just the page’s visual layout, is usable by someone who cannot rely on a mouse or a screen.
Why accessibility testing matters at enterprise scale
Legal exposure is real and growing. In the United States, the ADA and Section 508 have both been used as the basis for lawsuits and complaints over inaccessible websites and applications, and similar regulations exist in other jurisdictions. Enterprise applications, with larger user bases and more scrutiny, carry more risk when accessibility gaps surface publicly, a pressure that banking application testing teams know well.
A meaningful share of users also depend on assistive technology daily, whether that is a screen reader, magnification software, or keyboard-only navigation. Treating accessibility as an edge case understates how many people it actually affects.
Cost is the other factor. Retrofitting accessibility into an application that was not built with it in mind, restructuring markup, rebuilding components, rewriting workflows, is significantly more expensive than testing for it continuously as the product is built.
Understanding WCAG standards
The Web Content Accessibility Guidelines (WCAG) are the most widely referenced accessibility standard, and most enterprise compliance requirements point back to them directly or indirectly.
WCAG defines three conformance levels:
- A: The minimum level, addressing the most basic barriers.
- AA: The level most enterprises target, and the one most commonly cited in legal and regulatory contexts.
- AAA: The highest level, often impractical to apply across an entire application but useful for specific high-priority content.
Underneath those levels, WCAG is organized around four principles, commonly remembered as POUR:
- Perceivable: Information must be presentable in ways users can perceive, such as text alternatives for images.
- Operable: Interface components must be usable through different input methods, including keyboard-only navigation.
- Understandable: Content and interactions must be predictable and clear.
- Robust: Content must work reliably across assistive technologies, including as those technologies evolve.
Automated tools vs. manual review
Accessibility testing works best as a combination of two approaches, not a choice between them.
Automated tools scan markup and styling to catch specific, well-defined issues: missing alt text, insufficient color contrast, missing form labels, and invalid or missing ARIA attributes. They are fast, repeatable, and well suited to running on every build.
What automated tools cannot do is judge whether a page’s reading order actually makes sense, whether a multi-step workflow can be completed end to end with a screen reader, or whether an interaction is cognitively confusing even though it is technically compliant. That requires manual review, ideally involving people who use assistive technology as part of their daily work.
Enterprise teams that rely on automated scans alone tend to catch a narrow slice of real accessibility barriers while believing they have broader coverage than they actually do.
Implementing accessibility testing in your workflow
A practical approach runs automated accessibility scans on every build, similar to how teams already run smoke tests to catch obvious regressions early. Automated scans plugged into the CI/CD pipeline catch a steady stream of small, fixable issues before they accumulate.
Critical workflows, checkout, account creation, core navigation, should also get periodic manual review rather than relying on automation alone. These are the flows where a barrier does the most damage, so they deserve closer human attention on a regular cadence.
Accessibility defects should also be triaged with the same severity as functional bugs, not treated as a separate, lower-priority backlog. A missing form label that blocks a screen reader user from completing checkout is functionally equivalent to a broken submit button. Both are covered by the same end to end testing that verifies a workflow actually works, just for different users.
Building accessibility into a broader QA strategy
Accessibility testing works best when it is not a separate, occasional project but part of how every release gets validated. Automated scans on every build catch the mechanical issues quickly. Scheduled manual review keeps the workflows that matter most under real human scrutiny. Treating the results with the same urgency as any other defect keeps accessibility from quietly sliding down the priority list.
That combination, continuous automated coverage plus deliberate manual attention where it counts, is the same principle that makes any QA strategy hold up under real release pressure: catch what can be caught automatically, and protect time for the judgment that automation cannot replace.
Klarent runs accessibility checks alongside the functional tests your team already relies on, so mechanical issues get flagged on every run and your people can spend their time on the workflows that need a human eye. Want to see how that fits into your release process? Get in touch, we’re happy to walk through it with you.
