Glossary
Searchable terminology from accessibility, web standards, and related fields.
21 results found in evaluation methods.
- Accessibility Metric (Web Accessibility Metric, Accessibility Score)
- A quantitative measure used to assess and compare the accessibility quality of web pages or websites. Accessibility metrics typically calculate a score (often 0-100%) based on the number and severity …
- Accessibility Persona (Disability Persona, Inclusive Persona)
- A detailed, realistic description of a hypothetical user with specific disabilities, assistive technology configurations, and usage contexts, used during design and evaluation to help teams consider a…
- Accessibility-in-Use (Accessibility in Use)
- A concept describing how well accessibility metrics predict the actual effects that real accessibility problems will have on the quality of interaction as perceived by real users when interacting with…
- Barrier Walkthrough (Structured Walkthrough)
- A systematic accessibility evaluation method that guides evaluators through the process of identifying barriers that people with disabilities may encounter on a website. Unlike a standard conformance …
- Conformance Testing (Compliance Testing, Guideline Review)
- An accessibility evaluation method that checks whether a website or digital product meets the requirements specified by accessibility guidelines or standards such as WCAG. Conformance testing can be p…
- Cooperative Evaluation (Cooperative Usability Evaluation, Modified Think-Aloud)
- A usability evaluation method in which the researcher and participant work together as collaborators rather than following a strict observer-subject protocol. Unlike standard controlled experiments, c…
- Disability Simulation (Disability Simulator, Empathy Exercise)
- A method of accessibility evaluation where non-disabled people experience approximations of the barriers faced by people with disabilities when using technology or navigating environments. In web acce…
- Evaluator Effect
- The phenomenon in accessibility and usability evaluation where different evaluators examining the same interface detect different sets of problems and may reach different conclusions about the same is…
- Heuristic Evaluation (Expert Review, Heuristic Review)
- An accessibility or usability evaluation method in which evaluators examine an interface against a set of recognised principles (heuristics) to identify potential problems. In web accessibility, heuri…
- Keystroke-Level Model (KLM)
- A simplified predictive model from human-computer interaction research, originally developed by Card, Moran, and Newell, that estimates task completion time by decomposing user interactions into eleme…
- LLM Self-Reflection (AI Self-Assessment, Model Self-Evaluation)
- A technique in which a large language model is prompted to evaluate and critique its own output, identifying errors, gaps, or areas for improvement. In the context of accessibility, LLM self-reflectio…
- Manual Accessibility Testing (Manual Testing, Manual Evaluation, Human Testing)
- The process of evaluating web content accessibility through direct human inspection rather than automated tools. Manual testing is essential because many WCAG success criteria cannot be fully evaluate…
- Personalized Accessibility (Personalized Web Accessibility, User-Tailored Accessibility)
- An approach to accessibility evaluation and design that considers the specific disability profile, capabilities, and needs of individual users rather than treating accessibility as a single universal …
- SUMI (Software Usability Measurement Inventory)
- A standardised questionnaire-based method for measuring software usability from the end user perspective. SUMI assesses five dimensions: efficiency, affect (user satisfaction), helpfulness, control, a…
- Semi-Automatic Evaluation (Semi-Automated Testing, Guided Manual Evaluation)
- An approach to accessibility evaluation that combines automated checks with human expert judgment. Semi-automatic tools run algorithmic tests to detect issues that can be identified programmatically —…
- Signal Detection Theory (SDT)
- A statistical framework used to measure the accuracy of a system or person in distinguishing between the presence and absence of a target signal amid noise. In accessibility and assistive technology r…
- Structured Walkthrough (Guided Walkthrough, Accessibility Walkthrough)
- An accessibility evaluation method in which an evaluator is guided through a systematic series of checks using predefined steps, instructions, and heuristics. Unlike a full WCAG conformance review whi…
- Testability (Reliably Human Testable, Machine Testable)
- In the context of accessibility standards, testability refers to the degree to which a guideline or success criterion can be evaluated with consistent, reproducible results — either through automated …
- Unified Web Evaluation Methodology (UWEM)
- A standardized methodology developed by the European Web Accessibility Benchmarking Cluster (WAB Cluster) for evaluating the accessibility of websites in a consistent, comparable way. UWEM provides fo…
- Video Coding (Behavioural Video Coding, Video Data Coding)
- A systematic research method in which trained analysts review video recordings to identify, label, and categorise specific behaviours, actions, emotions, or events. In accessibility and usability rese…