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UX Reference

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A searchable A-Z reference for UX terms, human-centered design concepts, research methods, accessibility terminology, usability metrics, and digital service concepts.

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Reference index

A-Z entries

Showing 1-12 of 12 entries.

E

Effectiveness Measurement

Effectiveness is the extent to which users achieve specified goals with accuracy and completeness in a defined context of use.

Efficiency Measurement

Efficiency is the extent to which users achieve specified goals while expending appropriate resources such as time, effort, attention, steps, or support.

Empty State Interaction Quality

An empty state is a product, interface, or service state where expected content, data, records, cases, results, tasks, or next items are absent.

Engagement Measurement

Engagement is the degree and quality of meaningful interaction users have with a product, service, system, or content in relation to a task, goal, or service outcome.

Error Message Interaction Quality

An error message is user-facing feedback that explains a problem, identifies where it happened, and helps the user recover or correct the issue.

Error Prevention Interaction Quality

Error prevention is the practice of designing interactions, content, and system feedback to reduce the chance of avoidable mistakes.

Error Rate Measurement

Error rate records how often users make defined errors while attempting a task or journey under evaluation conditions.

Error Recovery Interaction Quality

Error recovery is the ability of users to recognize an error, understand what happened, correct the problem, and continue toward the intended task outcome.

Ethnography Evaluation Method

Ethnography is an in-depth qualitative research approach for studying people, practices, meanings, and social contexts in everyday settings.

Evidence Matrix Research Governance

An evidence matrix is a structured table or framework that organizes findings, supporting data, sources, confidence levels, affected journeys, and related recommendations.

Expert Review Evaluation Method

Expert review is an evaluation approach in which trained evaluators examine a product, prototype, interface, or service journey to identify potential user experience issues.

Explainability Interaction Quality

Explainability is the ability of a system, model, process, or output to be explained in a way that people can understand and use appropriately.