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* Usability prototypes – used to define, refine, and demonstrate user interface design usability, accessibility, look and feel.
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Usability and prototypes
The term usability engineering ( in contrast to interaction design and user experience design ) implies more of a focus on assessing and making recommendations to improve usability than it does on design, though Usability Engineers may still engage in design to some extent, particularly design of wire-frames or other prototypes.
Nielsen summarizes the various dimension of prototypes in his book Usability Engineering
* Usability testing – testing of the prototypes on an actual user — often using a technique called think aloud protocol where you ask the user to talk about their thoughts during the experience.
Usability and –
* Blackmon, M. H. Polson, Kitajima, M. ( 2003 ) Repairing Usability Problems Identified by the Cognitive Walkthrough for the Web CHI 2003 pp497 – 504.
( 2003 ) Usability and Privacy: a study of KaZaA P2P file-sharing CHI 2003 Vol. 5 no. 1 pp137 – 144.
* The Usability Professionals ' Association – The UPA Voice – Institute for International Research ( IIR ) and the UPA Connection: The Market Research Event 2006
* Usability Engineering, IEEE Software, January – February 2001.
* Usability and the Web, IEEE Internet Computing, March – April 2002.
Usability and used
Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users.
Usability and user
* The Art of Unix Usability, the book about programming and user interface philosophy in UNIX
Usability engineering is a field that is concerned generally with human-computer interaction and specifically with making human-computer interfaces that have high usability or user friendliness.
The largest subsets of Usability Engineers work to improve usability of software graphical user interfaces ( GUIs ), web-based user interfaces, and voice user interfaces ( VUIs ).
Usability engineers sometimes work to shape an interface such that it adheres to accepted operational definitions of user requirements.
* Framework for Logging Usability Data ( FLUD )-a file format and parser for representation of user interaction logs
Usability analyst Alan Cooper opposes these claims arguing that restriction of user actions for the sake of usability is an error, since this leads to user frustration for no benefit.
Usability differs from user satisfaction insofar as the former also embraces usefulness ( see Computer user satisfaction ).
Usability describes the quality of user experience across websites, software, products, and environments.
Usability and interface
Assessing the usability of an interface and recommending ways to improve it is the purview of the Usability Engineer.
Usability testing, the gold standard, is when participants are recruited and asked to use the actual or prototype interface and their reactions, behaviors, errors, and self-reports in interviews are carefully observed and recorded by the Usability Engineer.
On the basis of this data, the Usability Engineer recommends interface changes to improve usability.
Usability and design
Usability. Gov provides a tutorial and wide general reference for the design of usable websites.
Usability, especially with the goal of Universal Usability, encompasses the standards and guidelines of design for accessibility.
Usability Engineers conduct usability evaluations of existing or proposed interfaces and their findings are fed back to the Designer for use in design or redesign.
Usability and usability
Usability testing measures the usability, or ease of use, of a specific object or set of objects, whereas general human-computer interaction studies attempt to formulate universal principles.
To assess the usability of the system under usability testing, quantitative and / or qualitative Usability goals ( also called usability requirements ) have to be defined beforehand.
If the results of the usability testing meet the Usability goals, the system can be considered as usable for the end-users whose representatives have tested it.
* usability testing ( Gold standard of Usability Engineering, but the most involved and expensive method )
Usability includes methods of measuring usability, such as needs analysis and the study of the principles behind an object's perceived efficiency or elegance.
Usability is also important in website development ( web usability ).
Usability consultant Jakob Nielsen developed this method on the basis of several years of experience in teaching and consulting about usability engineering.
* Survey of Usability Labs — Summary statistics for size and layout of 13 usability labs ( 1994 )
* Global Usability Knowledge Management ( GUKM ) — Map of usability labs worldwide from Florida State University's Learning Systems Institute
* System Usability Scale, a scale for usability in systems engineering
The method was developed in the early nineties by Wharton, et al., and reached a large usability audience when it was published as a chapter in Jakob Nielsen's seminal book on usability, " Usability Inspection Methods.
* Usability. gov — usability basics with focus on web usability
Usability and .
* Usability efforts must carry equal concern in the eyes of developers as other technology-related concerns in the creation stage.
Usability testing focuses on measuring a human-made product's capacity to meet its intended purpose.
The Inside Intuit book, says ( page 22, 1984 ), "... in the first instance of the Usability Testing that later became standard industry practice, LeFevre recruited people off the streets ... and timed their Kwik-Chek ( Quicken ) usage with a stopwatch.
Usability testing is a black-box testing technique.
Usability testing generally involves measuring how well test subjects respond in four areas: efficiency, accuracy, recall, and emotional response.
Usability testing usually involves systematic observation under controlled conditions to determine how well people can use the product.
* Usability. gov
Usability is also better, particularly by the avoidance of horizontal scrolling.
Usability is rarely a goal for esoteric programming language designers — often it is quite the opposite.
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