Success Criteria
Success criteria are the defined conditions that determine whether a task, interaction, service journey, or evaluation goal has been completed successfully.
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A/B Testing
Acceptance Criteria
Accessibility
Accessibility Governance
Accessibility Regression
Accessible Name
Activation
Adoption
Adoption Barrier
Affordance
AI Transparency
Algorithmic Accountability
Alternative Text
Appeal Path
Assistive Technology
Assumption Mapping
Automated Decision
Automation Bias
Backstage
Behavioral Analytics
Benchmark Task
Business Requirement
Card Sorting
Case Management
Change Management
Channel Strategy
Codebook
Cognitive Accessibility
Cognitive Load
Color Contrast
Component
Component Documentation
Component Governance
Component Variant
Confidence Signal
Consent Clarity
Content Clarity
Content Design
Contextual Inquiry
Conversion
Data Quality
Data Saturation
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Decision Log
Design Handoff
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Design Rationale
Design Review
Design Specification
Design System
Design System Governance
Design Token
Diary Study
Drop-Off Rate
Effectiveness
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Error Rate
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Ethnography
Evidence Matrix
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Field Study
Focus Order
Form Usability
Front-End Implementation Quality
Frontstage
Functional Requirement
Funnel Analysis
Help Text
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Human-Centered Design
Impact Metric
Implementation Fidelity
Implementation Review
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Inclusive Design
Information Architecture
Informed Consent
Input Validation
Interaction Consistency
Interaction Cost
Interaction Specification
Interview Guide
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Journey Mapping
Keyboard Accessibility
Lagging Indicator
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Learnability
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Navigation Design
Non-Functional Requirement
Observation
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Opportunity Area
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Pattern Library
Persona
Plain Language
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Post-Task Rating
Privacy Notice
Problem Statement
Progressive Disclosure
Prototype Fidelity
Readability
Recommendation Prioritization
Recovery Path
Recruitment Criteria
Release Readiness
Research Ethics
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Research Operations
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Research Protocol
Research Repository
Responsive Design
Retention
Sampling Strategy
Screen Reader Testing
Search Log Analysis
Service Blueprint
Service Design
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Service Handoff
Service Recovery
Service Standard
Session Replay
Severity Rating
Single Ease Question
Stakeholder Map
Status Message
Success Criteria
Support Ticket Analysis
Survey
System Usability Scale
Task Analysis
Task Scenario
Task Success
Test Plan
Thematic Analysis
Think-Aloud Protocol
Time on Task
Touchpoint
Tree Testing
Triangulation
Trust Calibration
Usability Benchmarking
Usability Issue
Usability Testing
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User Interview
User Need
User Requirement
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User Story
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UX Metric
UX Roadmap
Visual Consistency
Wireframe
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S
Support Ticket Analysis
Support ticket analysis is the systematic review of support requests, complaints, helpdesk records, or service queries to identify recurring user problems, operational burden, and service...
Survey
A survey is a structured research method that uses standardized questions to collect data from a defined group of respondents.
System Usability Scale
The System Usability Scale is a standardized questionnaire used to measure perceived usability after people use a system.
T
Task Analysis
Task analysis is a method for studying what people need to do to achieve a goal, including the steps, decisions, tools, dependencies, constraints, and possible errors involved.
Task Scenario
A task scenario is a realistic description of a situation that asks a participant to attempt a task without directly telling them which interface steps to take.
Task Success
Task success is a UX evaluation measure that describes whether a user completes a specified task or goal under defined evaluation conditions.
Test Plan
A test plan is a structured document that defines how a usability test or evaluation will be conducted, including objectives, participants, tasks, measures, procedure, materials, and logi...
Thematic Analysis
Thematic analysis is a qualitative analysis method for identifying, organizing, and interpreting patterns of meaning across a dataset.
Think-Aloud Protocol
Think-aloud protocol is a method in which participants verbalize what they are thinking while performing a task, allowing evaluators to examine reasoning, confusion, expectations, and dec...
Time on Task
Time on task records the elapsed time users take to complete a defined task under evaluation conditions.
Touchpoint
A touchpoint is a specific point where a person interacts with a service, product, organization, system, communication, staff member, or artifact within an experience.
Tree Testing
Tree testing is an information architecture evaluation method in which participants use a simplified text-based hierarchy to find where they would go to complete a task or locate informat...
Triangulation
Triangulation is the use of multiple data sources, methods, researchers, or perspectives to strengthen the interpretation of research findings.
Trust Calibration
Trust calibration is the alignment between a person’s level of trust in a system and the system’s actual capability, reliability, uncertainty, and limits in a given context.
U
Usability Benchmarking
Usability benchmarking is the process of measuring usability performance using repeatable tasks and metrics so results can be compared across time, versions, systems, or user groups.
Usability Issue
A usability issue is a documented problem that prevents, delays, misleads, frustrates, or increases effort for users trying to complete a task or achieve a goal.
Usability Testing
Usability testing is an evaluation method in which representative users attempt realistic tasks while a team observes what helps, blocks, confuses, or supports use.
Use Case
A use case is a structured description of how an actor interacts with a system, service, or process to achieve a goal under specific conditions.
User Confidence
User confidence is a perception-based measure of how certain users feel about their understanding, decision, or task outcome after interacting with a product, service, or interface.
User Flow
A user flow represents the sequence of steps, decisions, screens, actions, and system responses a user follows to complete a task or reach a goal.
User Interview
A user interview is a qualitative research method in which a researcher asks participants open-ended questions to understand their experiences, expectations, reasoning, needs, and constra...
User Need
A user need is an evidence-based statement of what a user must understand, decide, access, provide, or accomplish in order to complete a task or receive value from a service.
User Requirement
A user requirement is a statement of what a system, product, service, or interaction must support so that users can meet identified needs in a specific context.