Usability & accessibility

Usability and accessibility: evaluating the ease of use and accessibility of software.

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Terms in this topic (83 in English)

Acceptance Criteria
The exit criteria that a component or system must satisfy in order to be accepted by a user, customer, or other authorized entity.
Acceptance Testing
Formal testing with respect to user needs, requirements, and business processes conducted to determine whether or not a system satisfies the acceptance …
Accessibility
The degree to which a product or system can be used by people with the widest range of characteristics and capabilities to achieve a specified goal in a …
Accessibility Testing
Testing to determine the ease by which users with disabilities can use a component or system.
Accuracy
The capability of the software product to provide the right or agreed results or effects with the needed degree of precision.
Agile Software Development
A group of software development methodologies based on iterative incremental development, where requirements and solutions evolve through collaboration between …
Attractiveness
The capability of the software product to be attractive to the user.
Availability
The degree to which a component or system is operational and accessible when required for use. Often expressed as a percentage.
Bug
A flaw in a component or system that can cause the component or system to fail to perform its required function, e.g., an incorrect statement or data …
Checker
The person involved in the review that identifies and describes anomalies in the product or project under review. Reviewers can be chosen to represent …
Confidentiality
The degree to which a component or system ensures that data are accessible only to those authorized to have access.
Context of Use
Users, tasks, equipment (hardware, software and materials), and the physical and social environments in which a software product is used.
Decision
A program point at which the control flow has two or more alternative routes. A node with two or more links to separate branches.
Error
A human action that produces an incorrect result.
Error Tolerance
The degree to which a component or system can continue normal operation despite the presence of erroneous inputs.
Expert Usability Review
An informal usability review in which the reviewers are experts. Experts can be usability experts or subject matter experts, or both.
Exploratory Testing
An informal test design technique where the tester actively controls the design of the tests as those tests are performed and uses information gained while …
Failure
Deviation of the component or system from its expected delivery, service or result.
Finding
A result of an evaluation that identifies some important issue, problem, or opportunity.
Formative Evaluation
A type of evaluation designed and used to improve the quality of a component or system, especially when it is still being designed.
Functional Suitability
The degree to which a component or system provides functions that meet stated and implied needs when used under specified conditions.
Heuristic
A generally recognized rule of thumb that helps to achieve a goal.
Heuristic Evaluation
A usability review technique that targets usability problems in the user interface or user interface design. With this technique, the reviewers examine the …
Human-Centered Design
An approach to design that aims to make software products more usable by focusing on the use of the software products and applying human factors, ergonomics, …
Input
A variable (whether stored within a component or outside) that is read by a component.
Interoperability
The capability of the software product to interact with one or more specified components or systems.
Learnability
The capability of the software product to enable the user to learn its application.
Lifecycle Model
The activities performed at each stage in software development, and how they relate to one another logically and chronologically.
Maintenance
Modification of a software product after delivery to correct defects, to improve performance or other attributes, or to adapt the product to a modified …
Management Review
A systematic evaluation of software acquisition, supply, development, operation, or maintenance process, performed by or on behalf of management that monitors …
Maturity
(1) The capability of an organization with respect to the effectiveness and efficiency of its processes and work practices. (2) The capability of the software …
Measurement
The process of assigning a number or category to an entity to describe an attribute of that entity.
Non-Functional Testing
Testing the attributes of a component or system that do not relate to functionality, e.g., reliability, efficiency, usability, maintainability and portability.
Outcome
The consequence/outcome of the execution of a test.
Output
A variable (whether stored within a component or outside) that is written by a component.
Performance
The degree to which a system or component accomplishes its designated functions within given constraints regarding processing time and throughput rate.
Post-Project Meeting
A meeting at the end of a project during which the project team members evaluate the project and learn lessons that can be applied to the next project.
Precondition
Environmental and state conditions that must be fulfilled before the component or system can be executed with a particular test or test procedure.
Priority
The level of (business) importance assigned to an item, e.g., defect.
Product Risk
A risk directly related to the test object.
Project Risk
A risk related to management and control of the (test) project, e.g., lack of staffing, strict deadlines, changing requirements, etc.
Quality
The degree to which a component, system or process meets specified requirements and/or user/customer needs and expectations.
Quality Control
A set of activities designed to evaluate the quality of a component or system.
Requirement
A condition or capability needed by a user to solve a problem or achieve an objective that must be met or possessed by a system or system component to satisfy …
Requirements-Based Testing
An approach to testing in which test cases are designed based on test objectives and test conditions derived from requirements, e.g., tests that exercise …
Review
An evaluation of a product or project status to ascertain discrepancies from planned results and to recommend improvements. Examples include management review, …
Risk
A factor that could result in future negative consequences.
Risk Assessment
The process of identifying and subsequently analyzing the identified project or product risk to determine its level of risk, typically by assigning likelihood …
Risk Category
A set of risks grouped by one or more common factors such as a quality attribute, cause, location, or potential effect of risk. A specific set of product risk …
Risk Identification
The process of identifying risks using techniques such as brainstorming, checklists and failure history.
Severity
The degree of impact that a defect has on the development or operation of a component or system.
Software Usability Measurement Inventory
A questionnaire-based usability test technique for measuring software quality from the end user's point of view.
Source Statement
An entity in a programming language, which is typically the smallest indivisible unit of execution.
Standard
Formal, possibly mandatory, set of requirements developed and used to prescribe consistent approaches to the way of working or to provide guidelines (e.g., …
Summative Evaluation
A type of evaluation designed and used to gather conclusions about the quality of a component or system, especially when a substantial part of it has completed …
System Testing
Testing an integrated system to verify that it meets specified requirements.
System Usability Scale
A simple, ten-item attitude scale giving a global view of subjective assessments of usability.
Test
A set of one or more test cases.
Test Execution
The process of running a test on the component or system under test, producing actual result(s).
Test Manager
The person responsible for project management of testing activities and resources, and evaluation of a test object. The individual who directs, controls, …
Test Plan
A document describing the scope, approach, resources and schedule of intended test activities. It identifies amongst others test items, the features to be …
Test Reporting
Collecting and analyzing data from testing activities and subsequently consolidating the data in a report to inform stakeholders.
Test Session
An uninterrupted period of time spent in executing tests.
Test Type
A group of test activities aimed at testing a component or system focused on a specific test objective, i.e. functional test, usability test, regression test …
Tester
A skilled professional who is involved in the testing of a component or system.
Testing
The process consisting of all lifecycle activities, both static and dynamic, concerned with planning, preparation and evaluation of software products and …
Think Aloud Usability Testing
A usability testing technique where test participants share their thoughts with the moderator and observers by thinking aloud while they solve usability test …
Usability
The capability of the software to be understood, learned, used and attractive to the user when used under specified conditions.
Usability Evaluation
A process through which information about the usability of a system is gathered in order to improve the system (known as formative evaluation) or to assess the …
Usability Lab
A test facility in which unintrusive observation of participant reactions and responses to software takes place.
Usability Requirement
A requirement on the usability of a component or system.
Usability Test Participant
A representative user who solves typical tasks in a usability test.
Usability Test Script
A document specifying a sequence of actions for the execution of a usability test. It is used by the moderator to keep track of briefing and pre-session …
Usability Test Session
A test session in usability testing in which a usability test participant is executing tests, moderated by a moderator and observed by a number of observers.
Usability Test Task
A usability test execution activity specified by the moderator that needs to be accomplished by a usability test participant within a given period of time.
Usability Testing
Testing to determine the extent to which the software product is understood, easy to learn, easy to operate and attractive to the users under specified …
User Experience
A person's perceptions and responses resulting from the use or anticipated use of a software product.
User Interface
All components of a system that provide information and controls for the user to accomplish specific tasks with the system.
User Interface Guideline
A low-level, specific rule or recommendation for user interface design that leaves little room for interpretation so designers implement it similarly. It is …
User Survey
A usability evaluation whereby a representative sample of users are asked to report subjective evaluation into a questionnaire based on their experience in …
V-Model
A framework to describe the software development lifecycle activities from requirements specification to maintenance. The V-model illustrates how testing …
Web Content Accessibility Guidelines
A part of a series of web accessibility guidelines published by the Web Accessibility Initiative (WAI) of the World Wide Web Consortium (W3C), the main …
Website Analysis and Measurement Inventory
A questionnaire-based usability test technique for measuring web site software quality from the end user's point of view.