Glossary

Searchable terminology from accessibility, web standards, and related fields.

Barrier Impact Factor (BIF, Accessibility Barrier Impact)

A metric for measuring the severity of web accessibility barriers by weighting detected errors according to which assistive technologies and disability groups they affect. The BIF is calculated by sum…

• accessibility evaluation
• metrics
• web accessibility
• automated testing

Lighthouse (Google Lighthouse, Chrome Lighthouse)

An open-source automated tool developed by Google for auditing web page quality, including performance, accessibility, SEO, and progressive web app compliance. Lighthouse runs in Chrome DevTools, as a…

• automated testing
• web development
• accessibility evaluation