Glossary

Search results

Web Accessibility Barrier(also: WAB, Accessibility Barrier)

Any element, design pattern, or technical implementation on a web page that prevents or hinders people with disabilities from accessing, understanding, or interacting with content. Common web accessibility barriers include images without alternative text, videos without…

Web Accessibility Barrier Score(also: WAB, WAB Score)

A quantitative metric for measuring the accessibility level of a website, defined as the mean value of the failure rate of accessibility checkpoints on a page, weighted by the priority of each checkpoint. The failure rate is the number of violations of a checkpoint divided by…

Web Accessibility Quantitative Metric(also: WAQM)

An accessibility evaluation metric that calculates a quantitative score for a website based on automatically generated evaluation reports. WAQM computes the failure rate for each tested page, then derives the overall website accessibility value by weighting pages according to…

Web Complexity(also: Page Complexity, Website Complexity)

A measure of the technical sophistication and structural density of a web page, typically assessed by the number and types of HTML elements, scripts, embedded objects, and interactive features present. In accessibility research, web complexity is an important factor because more…

Web Crawling(also: Web Spidering, Web Scraping)

The automated process of systematically browsing and indexing web pages by following hyperlinks from a starting URL. In accessibility evaluation, web crawlers are used to discover and catalogue pages across a website for audit purposes. Two primary traversal strategies exist:…

5 results.