What refers to the focus on the users reaction to and interaction with a product including its efficiency effectiveness and ease of use?

Usability Evaluation focuses on how well users can learn and use a product to achieve their goals. It also refers to how satisfied users are with that process. To gather this information, practitioners use a variety of methods that gather feedback from users about an existing site or plans related to a new site.

What is Usability?

Usability refers to the quality of a user's experience when interacting with products or systems, including websites, software, devices, or applications. Usability is about effectiveness, efficiency and the overall satisfaction of the user.

It is important to realize that usability is not a single, one-dimensional property of a product, system, or user interface. ‘Usability’ is a combination of factors including:

• Intuitive design: a nearly effortless understanding of the architecture and navigation of the site
• Ease of learning: how fast a user who has never seen the user interface before can accomplish basic tasks
• Efficiency of use: How fast an experienced user can accomplish tasks
• Memorability: after visiting the site, if a user can remember enough to use it effectively in future visits
• Error frequency and severity: how often users make errors while using the system, how serious the errors are, and how users recover from the errors
• Subjective satisfaction: If the user likes using the system

What are the Evaluation Methods and When Should I Implement Them?

The key to developing highly usable sites is employing user-centered design. The expression, “test early and often”, is particularly appropriate when it comes to usability testing. As part of UCD you can and should test as early as possible in the process and the variety of methods available allow you to assist in the development of content, Information architecture, visual design, interaction design and general user satisfaction.

Opportunities for testing include:

• Baseline usability testing on an existing site
• Focus groups, surveys or interviews to establish user goals
• Card Sort testing to assist with IA development
• Wireframe testing to evaluate navigation
• First click testing to make sure your users go down the right path
• Usability testing to gauge the user interaction end-to-end and
• Satisfaction surveys to see how the site fares in the real world.

Any one or a combination of these tests will radically improve the usability of your site, system or application.

Working with Data from Testing

Usability evaluations can capture two types of data: qualitative data and quantitative data.  Quantitative data notes what actually happened.  Qualitative data describes what participants thought or said.

Once you have gathered your data, use it to:

1. Evaluate the usability of your website
2. Recommend improvements
3. Implement the recommendations
4. Re-test the site to measure the effectiveness of your changes.

The user experience (UX) is how a user interacts with and experiences a product, system or service. It includes a person's perceptions of utility, ease of use, and efficiency. Improving user experience is important to most companies, designers, and creators when creating and refining products because negative user experience can diminish the use of the product and, therefore, any desired positive impacts; conversely, designing toward profitability often conflicts with ethical user experience objectives and even causes harm. User experience is subjective. However, the attributes that make up the user experience are objective.

Definitions[edit]

According to Nielsen Norman Group, 'user experience' includes all the aspects of the interaction between the end-user with the company, its services, and its products.[1]

The international standard on ergonomics of human-system interaction, ISO 9241, defines user experience as a "user’s perceptions and responses that result from the use and/or anticipated use of a system, product or service".[2] According to the ISO definition, user experience includes all the users' emotions, beliefs, preferences, perceptions, physical and psychological responses, behaviors and accomplishments that occur before, during, and after use. The ISO also lists three factors that influence user experience: the system, the user, and the context of use.

Note 3 of the standard hints that usability addresses aspects of user experience, e.g. "usability criteria can be used to assess aspects of user experience". The standard does not go further in clarifying the relation between user experience and usability. Clearly, the two are overlapping concepts, with usability including pragmatic aspects (getting a task done) and user experience focusing on users' feelings stemming both from pragmatic and hedonic aspects of the system. Many practitioners use the terms interchangeably. The term "usability" pre-dates the term "user experience". Part of the reason the terms are often used interchangeably is that, as a practical matter, a user will, at a minimum, require sufficient usability to accomplish a task while the feelings of the user may be less important, even to the user themselves. Since usability is about getting a task done, aspects of user experience like information architecture and user interface can help or hinder a user's experience. If a website has "bad" information architecture and a user has a difficult time finding what they are looking for, then a user will not have an effective, efficient, and satisfying search.

In addition to the ISO standard, there exist several other definitions for user experience.[3] Some of them have been studied by Law et al.[4]

History[edit]

Early developments in user experience can be traced back to the Machine Age that includes the 19th and early 20th centuries. Inspired by the machine age intellectual framework, a quest for improving assembly processes to increase production efficiency and output led to the development of major technological advancements, such as mass production of high-volume goods on moving assembly lines, high-speed printing press, large hydroelectric power production plants, and radio technology to name a few.

Frederick Winslow Taylor and Henry Ford were in the forefront of exploring new ways to make human labor more efficient and productive. Taylor's pioneering research into the efficiency of interactions between workers and their tools is the earliest example that resembles today's user experience fundamentals.[citation needed]

The term user experience was brought to wider knowledge by Donald Norman in the mid-1990s.[5] He never intended the term "user experience" to be applied only to the affective aspects of usage. A review of his earlier work[6] suggests that the term "user experience" was used to signal a shift to include affective factors, along with the pre-requisite behavioral concerns, which had been traditionally considered in the field. Many usability practitioners continue to research and attend to affective factors associated with end-users, and have been doing so for years, long before the term "user experience" was introduced in the mid-1990s.[7] In an interview in 2007, Norman discusses the widespread use of the term "user experience" and its imprecise meaning as a consequence thereof.[8]

Several developments affected the rise of interest in the user experience

1. Recent advances in mobile, ubiquitous, social, and tangible computing technologies have moved human-computer interaction into practically all areas of human activity. This has led to a shift away from usability engineering to a much richer scope of user experience, where users' feelings, motivations, and values are given as much, if not more, attention than efficiency, effectiveness and basic subjective satisfaction (i.e. the three traditional usability metrics.)[9][10]
2. In website design, it was important to combine the interests of different stakeholders: marketing, branding, visual design, and usability. Marketing and branding people needed to enter the interactive world where usability was important. Usability people needed to take marketing, branding, and aesthetic needs into account when designing websites. User experience provided a platform to cover the interests of all stakeholders: making web sites easy to use, valuable, and effective for visitors. This is why several early user experience publications focus on website user experience.[11][12][13][14]

The field of user experience represents an expansion and extension of the field of usability, to include the holistic perspective of how a person feels about using a system. The focus is on pleasure and value as well as on performance. The exact definition, framework, and elements of user experience are still evolving.

User experience of an interactive product or a website is usually measured by a number of methods, including questionnaires, focus groups, observed usability tests and other methods. A freely available questionnaire (available in several languages) is the User Experience Questionnaire (UEQ).[15] The development and validation of this questionnaire is described in a computer science essay published in 2008.[16]

Higher levels of user experience have been linked to increased effectiveness of digital health interventions targeting improvements in physical activity,[17] nutrition, mental health and smoking.[18]

Google Ngram Viewer shows wide use of the term starting in the 1930s.,[19] "He suggested that more follow-up in the field would be welcomed by the user, and would be a means of incorporating the results of user's experience into the design of new machines." Use of the term in relation to computer software also pre-dates Norman.[20]

Influences on user experience[edit]

Many factors can influence a user's experience with a system. To address the variety, factors influencing user experience have been classified into three main categories: user's state and previous experience, system properties, and the usage context (situation).[21] Understanding representative users, working environments, interactions and emotional reactions help in designing the system during User experience design.

Momentary emotion or overall user experience[edit]

Single experiences influence the overall user experience:[22] the experience of a key click affects the experience of typing a text message, the experience of typing a message affects the experience of text messaging, and the experience of text messaging affects the overall user experience with the phone. The overall user experience is not simply a sum of smaller interaction experiences, because some experiences are more salient than others. Overall user experience is also influenced by factors outside the actual interaction episode: brand, pricing, friends' opinions, reports in media, etc.

One branch in user experience research focuses on emotions. This includes momentary experiences during interaction: designing affective interaction and evaluating emotions. Another branch is interested in understanding the long-term relation between user experience and product appreciation. The industry sees good overall user experience with a company's products as critical for securing brand loyalty and enhancing the growth of the customer base. All temporal levels of user experience (momentary, episodic, and long-term) are important, but the methods to design and evaluate these levels can be very different.

Developer experience[edit]

Developer experience (DX) is a user experience from a developer's point of view. It is defined by the tools, processes, and software that a developer uses when interacting with a product or system while in the process of production of another one, such as in software development.[23] DX has had increased attention paid to it especially in businesses who primarily offer software as a service to other businesses where ease of use is a key differentiator in the market.[24]

See also[edit]

• Chief experience officer
• Content strategy
• Customer experience
• Expectation
• Hick's law
• Human factors and ergonomics
• Interaction design
• Interaction design pattern
• Responsive web design
• Usability
• User-centered design
• User experience design
• User experience evaluation
• User interface design
• User research
• Online to offline

References[edit]

1. ^ Don, Norman; Jakob, Nielsen. "The Definition of User Experience (UX)". Nielsen Norman Group. Retrieved 2 March 2021.
2. ^ International Organization for Standardization (2019). Ergonomics of human-system interaction – Part 210: Human-centred design for interactive systems (2nd ed.). ISO 9241-210:2019 (formerly known as ISO 13407).
3. ^ "User experience definitions". Archived from the original on 13 January 2012.
4. ^ Law, E.; Roto, V.; Hassenzahl, M.; Vermeeren, A.; Kort, J. (4–9 April 2009). "Understanding, Scoping and Defining User Experience: A Survey Approach". Proceedings of Human Factors in Computing Systems conference. CHI’09. Boston, MA, USA. Archived (PDF) from the original on 11 September 2017.
5. ^ Donald Norman, Jim Miller, Austin Henderson: What You See, Some of What's in the Future, And How We Go About Doing It: HI at Apple Computer Archived 20 October 2017 at the Wayback Machine. Proceedings of CHI 1995, Denver, Colorado, USA
6. ^ Buley, Leah. 2013, The User Experience Team of One: A Research and Design Survival Guide. Rosenfield Media, LLC, USA.
7. ^ Nielsen, Jakob. "A 100-Year View of User Experience". Nielsen Norman Group. Retrieved 5 August 2022.
8. ^ "Peter in Conversation with Don Norman About UX & Innovation". Archived from the original on 7 December 2013.
9. ^ ISO 9241-11:1998, Ergonomics of Human System Interaction: Guidance on usability
10. ^ "COST - Towards the Integration of Transectorial IT Design and Evaluation (End date: November 2013)". cost.eu. Archived from the original on 14 March 2015. Retrieved 9 May 2018.
11. ^ Fleming, J. 1998, Web Navigation: Designing the User Experience Archived 10 August 2017 at the Wayback Machine. O'Reilly & Associates, Inc, USA.
12. ^ Garrett, J. 2003, Elements of User Experience: User-Centered Design for the Web Archived 3 December 2016 at the Wayback Machine. New Riders Press, USA.
13. ^ Kuniavsky, M. (2003). Observing the User Experience: A Practitioner's Guide to User Research. United States: Elsevier. ISBN 978-0-08-049756-3. Archived from the original on 9 May 2018.
14. ^ Berry, D. 2000, The user experience - The iceberg analogy of usability. Technical library of the IBM Ease of Use Team. "The user experience". October 2000. Archived from the original on 15 August 2010. Retrieved 15 September 2010.
15. ^ "UEQ - User Experience Questionnaire". ueq-online.org. Archived from the original on 1 October 2017. Retrieved 9 May 2018.
16. ^ Laugwitz, B., Held, T. & Schrepp, M. (2008). Construction and evaluation of a user experience questionnaire Archived 11 September 2017 at the Wayback Machine. In: Holzinger, A. (Ed.): USAB 2008, LNCS 5298, S. 63-76.
17. ^ Mclaughlin, Matthew; Delaney, Tessa; Hall, Alix; Byaruhanga, Judith; Mackie, Paul; Grady, Alice; Reilly, Kathryn; Campbell, Elizabeth; Sutherland, Rachel; Wiggers, John; Wolfenden, Luke (19 February 2021). "Associations Between Digital Health Intervention Engagement, Physical Activity, and Sedentary Behavior: Systematic Review and Meta-analysis". Journal of Medical Internet Research. 23 (2): e23180. doi:10.2196/23180. ISSN 1438-8871. PMC 8011420. PMID 33605897.
18. ^ Donkin, Liesje; Christensen, Helen; Naismith, Sharon L; Neal, Bruce; Hickie, Ian B; Glozier, Nick (5 August 2011). "A Systematic Review of the Impact of Adherence on the Effectiveness of e-Therapies". Journal of Medical Internet Research. 13 (3): e52. doi:10.2196/jmir.1772. ISSN 1438-8871. PMC 3222162. PMID 21821503.
19. ^ Lubrication Engineering. 1945.
20. ^ "Google Ngram Viewer". books.google.com. Retrieved 9 May 2018.
21. ^ Hassenzahl, M. & Tractinsky, N. 2006, User Experience – a Research Agenda Archived 20 October 2014 at the Wayback Machine. Behaviour and Information Technology, Vol. 25, No. 2, March–April 2006, pp. 91-97
22. ^ Forlizzi, J., Battarbee, K. 2004, Understanding Experience in Interactive Systems Archived 31 January 2016 at the Wayback Machine. Proceedings of DIS2004, 1–4 August 2004, Cambridge, USA.
23. ^ "Good Developer Experience". Developer Experience Knowledge Base. Retrieved 10 September 2021.
24. ^ "What is Developer Experience (DX)?". CSS-Tricks. 15 June 2020. Retrieved 10 September 2021.

External links[edit]

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