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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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A-Z entries

Showing 49-72 of 180 entries.

D

Design Specification Structural Design

A design specification is a documented description of how a design should be built, including layout, content, components, states, behavior, accessibility requirements, responsive rules,...

Design System Structural Design

A design system is a governed set of reusable interface components, interaction patterns, visual rules, content conventions, accessibility guidance, and documentation used to support cons...

Design System Governance Research Governance

Design system governance is the set of roles, rules, processes, and decision structures used to maintain, evolve, approve, document, and quality-control a design system over time.

Design Token Structural Design

A design token is a named, reusable value that represents a design decision, such as color, spacing, typography, border radius, elevation, or motion, so it can be shared across design too...

Diary Study Evaluation Method

A diary study is a research method in which participants record events, experiences, behaviors, or reflections repeatedly over a defined period.

Drop-Off Rate Measurement

Drop-off rate is the proportion of users who leave or stop progressing at a defined step in a journey, flow, funnel, or task sequence.

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.

F

Failure State Interaction Quality

A failure state is a product, interface, system, or service condition where a process, submission, decision, transaction, data request, or automated action has failed or cannot continue a...

Field Study Evaluation Method

A field study examines people, behavior, tools, tasks, and environments in real-world settings rather than only in a lab, interview, or controlled test session.

Focus Order Structural Design

Focus order is the sequence in which interactive elements receive keyboard or programmatic focus as users move through a digital interface.

Form Usability Structural Design

Form usability describes how effectively and confidently users can understand, complete, review, correct, and submit forms under real use conditions.

Front-End Implementation Quality Structural Design

Front-end implementation quality is the degree to which the coded user interface is usable, accessible, reliable, maintainable, compatible, performant enough for its context, and aligned...

Frontstage Structural Design

Frontstage refers to the visible parts of a service that users directly encounter, such as screens, content, staff interactions, messages, forms, documents, spaces, and service touchpoints.