Scoping user experience
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ì Understanding, Scoping and Defining User eXperience: A Survey Approach CHI 2009
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Kai-‐Yin Cheng, PhD Candidate, GINM, NTU Advisor : Dr. Bing-‐Yu Chen (Robin)
During my 4-year Research life…
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SmartPlayer
GUI
AmbientMemento
WIMP
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MemoIcon
Multitouch
iCon
Tangible User Interface
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SocialAlbum
Social Interaction
RailwayVis
Information Visualization
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MusicSpace
Music Interaction
Robicon
Human Robot Interaction
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PUB/SonarWatch
Kinetic User Interface
Grab-Carry-Release/ARM
Augmented Reality
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TipTapTones
Mobile Learning
GaussSense
Magnetic User Interface
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ART DEMO
Exhibition
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The value of HCI…
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Enhance User
Experience
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Search: User Experience
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Book: User Experience
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What’s the definition of User Experience
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One of my friends’ viewpoint
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Product
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User Interface
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User Experience
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Dig for the real answers…
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Things become more complicated
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Do we speak the same language? Who’s UX?
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Search the definition in Wikipedia….
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Donald Norman!
Donald Norman
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CHI 2009 paper found!The newest reference!
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What’s the difference between User Experience and Service Experience
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What’s the difference between User Experience
and Experience
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What’s not User Experience
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ì Understanding, Scoping and Defining User eXperience: A Survey Approach CHI 2009
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Authors
Effie L-‐C. Law University of Leicester
Virpi Roto Nokia Research Center
Marc Hassenzahl Folkwang University
Arnold P.O.S. Vermeeren DelK University of Technology
Joke Kort TNO ICT
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Traditional Usability Fram
ework
系統可接受性
實際可接受性 社會可接受性
成本
兼容性 可靠性
其他 有用性
(Usefulness)
實用性 (Utility) 可用性
(Usability)
可學習性 (Learnability)
效率 (Efficiency)
可記憶性 (Memorability)
出錯 (Errors)
滿意度 (Satisfaction)
Not enough
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UX highlight non-‐utilization aspect
Donald Normal – Emo-onal Design
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UX highlight non-‐utilization aspect
Donald Normal – Emo-onal Design
Only one
dimension of UX
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Challenge It is so challenging to reach a common defini-on of UX.
Non-‐uOlizaOon User affect
sensaOon
usability emoOonal hedonic AestheOc
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• UX is associated with a broad range of fuzzy and dynamic concepts, including emo-onal, affec-ve, experien-al, hedonic, and aesthe-c variables
• The unit of analysis for UX is too malleable, ranging from a single aspect of an individual end-‐user’s interacOon with a standalone applicaOon to all aspects of mul-ple end-‐users’ interacOons with the company and its merging of services from mulOple disciplines
• the landscape of UX research is fragmented and complicated by diverse theoreOcal models with different foci such as pragma-sm, emo-on, affect, experience, value, pleasure, beauty, hedonic quality, etc.
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ì
• A definiOon will facilitate scien-fic discourse, especially when scholars from mulOple disciplines are involved; otherwise, communicaOon breakdowns are bound to occur.
• It will enable managing pracOcal applicaOons of UX, for which UX will need to be opera-onalized and evaluated against measurements.
• It will help the teaching of the noOon UX with the fundamental understanding of its nature and scope.
The benefits of consensus
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2006 NordiCHI 2007 HCI
2008 CHI SIG session
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ISO 9241
“A person's perceptions and responses that result
from the use or anticipated use of a product, system or
service."
ISO 9241
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Questionnaire
UX Statements
UX DefiniOons
Your Background
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
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Questionnaire
UX Statements
UX DefiniOons
Your Background
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
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Surveys
• Round 1: 2008/2/E -‐-‐ 2008/3/M • Round 2: 2008/4/M -‐-‐ 2008/5/E
• 275 respondents • 82 females / 137 males • 36.5 years old (avg.) [18~59] • 25 countries
• Finland (48) • USA (43) • UK (36) • Netherland (36)
Western viewpoint
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Profiles
• UCD: 9 years (avg.) • UX: 8 years (avg.)
• Industry: UCD = UX • Academia: UCD != UX
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Questionnaire
UX Statements
UX DefiniOons
Your Background
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
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Statements
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Statements
Strong agreement
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Statements
Between mild and strong agreement
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Statements
Mild agreement
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Statements
Mild and strong disagreement
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Conclusion of Surveys
“In summary, the respondents understand UX as dynamic, context-dependent, and subjective, stemming
from a broad range of potential benefits users may derive from a product.
However, UX is not construed as
something overly subjectivistic, where prediction of and design for
experience would become futile.
UX is seen as something new, which must be a part of the HCI domain and
be grounded in UCD practices."
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Agreem
ent Levels and Background
• In summary, differences in the respondents’ background variables did not strongly influence their agreement on the statements. (F-‐test, 10 background variables)
• The higher their experOse in UCD/UX, the less the respondents agreed on the subjecOve nature of UX People who have worked for years in UCD or UX are likely to become aware of common characterisOcs in product requirements and to gain similar experiences across a number of yet different projects. It may then make user experience less subjecOve.
• The higher the experOse in UX the less the respondents agreed on the need for a standard definiOon. An explicit definiOon may be viewed as a communicaOon tool for non-‐experts rather than central to experts.
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Agreem
ent Levels and Background
• The Finnish respondents agreed the most on the subjecOvity noOon of UX (statement 6), whereas those from the USA agreed the least.
• Likewise, the Finnish respondents agreed the most on UX as emoOonal apachment (statement 20), whereas their counterparts from the USA agreed the least.
• The Finnish respondents more strongly agreed on a qualitaOve approach to UX (statement 22) as compared to the respondents from the UK or USA.
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Questionnaire
UX Statements
UX DefiniOons
Your Background
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
1.……………………………………………… 2.……………………………………………… 3.………………………………………………
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Five Definitions concluded from
• The five definiOons used in the quesOonnaire were
selected from a larger pool of definiOons. This pool was created by performing a Google web search, and by searching Google scholar as well as the ACM Digital Library. The following keyword combinaOons were used: “User experience” AND “definiOon”; “User experience is about”, “Glossary” AND “user experience”. In the Google web search the following addiOonal keyword combinaOons were used: “End-‐user experience” AND “definiOon”, and “Glossary” AND “Product experience”. Unpublished definiOons from Nokia and Philips were also included in the pool.
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Five Definitions
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Five Definitions
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Definition Preference 108 worked in industry, 51 academia or 49 both/between, and 2 did not provide this specific data.
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Definition Preference
Industry prefer
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Definition Preference
Academia prefer
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Definition Preference
Academia prefer
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Definition Preference
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Definition Preference
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Comments on the picked definitions
Frequency higher than 10 Descending order
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Four aspects Temporal: This pertains to controversial arguments on when UX is brought about: before, during or aKer interacOng with a system. Some respondents stressed that the Omeframe should cover the past, present, and future. Framework: UX should be understood through the conceptual lens of a community of pracOce, which iteraOvely defines constructs germane to UX via its acOviOes such as designing and criOquing objects of interest. Discipline of interacOon design, UCD philosophy, hedonic/pragmaOc model [5], and value-‐based design [2] are also relevant frameworks to consider. Besides, parOculariOes of applicaOon contexts such as business models should inform how UX is defined. Elements: Measurable aspects of UX such as physiological responses and user task performances (cf. tradiOonal usability metrics) are considered relevant. So are other subjecOve, psychological constructs like passion, types of affects, and consumer percepOon. It is also important to include in the definiOon for whom and where it is supposed to be used. Scoping: Some respondents tended to understand UX in terms of a broad scope, stretching beyond interacOon. Others remarked that UX is not necessarily good or narrowly equated to a cogniOve process manipulated by designers.
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Four aspects Temporal: This pertains to controversial arguments on when UX is brought about: before, during or aKer interacOng with a system. Some respondents stressed that the Omeframe should cover the past, present, and future. Framework: UX should be understood through the conceptual lens of a community of pracOce, which iteraOvely defines constructs germane to UX via its acOviOes such as designing and criOquing objects of interest. Discipline of interacOon design, UCD philosophy, hedonic/pragmaOc model [5], and value-‐based design [2] are also relevant frameworks to consider. Besides, parOculariOes of applicaOon contexts such as business models should inform how UX is defined. Elements: Measurable aspects of UX such as physiological responses and user task performances (cf. tradiOonal usability metrics) are considered relevant. So are other subjecOve, psychological constructs like passion, types of affects, and consumer percepOon. It is also important to include in the definiOon for whom and where it is supposed to be used. Scoping: Some respondents tended to understand UX in terms of a broad scope, stretching beyond interacOon. Others remarked that UX is not necessarily good or narrowly equated to a cogniOve process manipulated by designers.
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Scoping: Social or Individual
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Scoping: Social or Individual
We agree that other people may influence the experience a lot before, during, and aKer interacOng with a product. However, only an individual can have feelings and experiences. A group can experience together, but the experience we are invesOgaOng is sOll inside each individual of that group. The community forms the social context that affects user experience together with other contextual factors: physical technology and task context (cf. ISO13407: 1999). As agreed by most respondents, the contextual factors are important influencers of UX (statement 5).
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Scoping: Brand Experience
Brand experience includes not only interacOon with the branded products, but interacOon with the company, its products and services. Brand experience is a broader concept than user experience. Brand experience affects the user experience when you interact with the product: you forgive flaws for a loved brand and blame loudly the flaws in the products of a bad brand. If you have never used a product, we think all we can discuss is brand experience or perhaps product experience, but not user experience. Once you do interact with a product the user experience typically affects the brand experience. Everything before the first-‐hand encounter with a product just builds up expectaOons for the user experience or affects the brand experience.
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Scoping: Product Experience
Product experience has a narrower scope than user experience, as not all objects are commercial products. More and more products do not work in isolaOon, but are dependent on external systems. We are definitely interested in interacOons with any kind of items and systems, whether commercial or non-‐commercial. If we want to emphasize that experience is subjecOve (“I had great experience using this”) rather than a product apribute (“this product has excellent user experience”), we recommend using the term user experience over product experience.
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Scoping: Service Experience
Service experience in a broad sense can refer to face-‐to-‐face services (e.g. in a restaurant or repair point), public services (e.g. roads), digital services on the Internet servers (e.g. gambling site), or anything in between. Because of the wide variety of services, we need to be careful when talking about service experience. We argue that face-‐to-‐face services are not in the focus of user experience, because humans do not have a user interface and so one cannot ‘use’ humans. Customer services related to a product do affect the overall UX of the product, similar to reading a test report of the product in a magazine. If a company provides an online trouble-‐shooOng tool for problems with the product, we can examine the user experience of using that tool separately from the user experience of using the product itself. So the product user experience is separate from the user experience of the product–related service.
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Scoping: User Experience We recommend the term user experience to be scoped to products, systems, services, and objects that a person interacts with through a user interface. These can be tools, knowledge systems, or entertainment services, for example.
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ISO 9241
“A person's perceptions and responses that result
from the use or anticipated use of a product, system or
service."
ISO 9241
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ISO 9241
“A person's perceptions and responses that result from the
use or anticipated use of a product, system or service." The definiOon focuses UX on the immediate consequences of use (percepOons and responses) and also introduces the concept of ‘anOcipated use’.
Some respondents commented that UX can or even should be invesOgated during and aKer, even long aKer, the interacOon. Industry is typically interested in the long-‐ term user experience, as temporary feelings are less important than the overall product user experience when people evaluate products.
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ISO 9241
“A person's perceptions and responses that result from the
use or anticipated use of a product, system or service." The definiOon focuses UX on the immediate consequences of use (percepOons and responses) and also introduces the concept of ‘anOcipated use’.
This suggests that clarificaOons are also needed for the term ‘anOcipated use’, especially its relaOon to user expectaOons. As UX is strongly affected by contextual factors, the authors see it important to vividly imagine use cases with contextual factors to evoke realisOc experiences out of anOcipated use. For pracOOoners, it is essenOal to evaluate UX already in the early phases of product development, so methods for studying UX of anOcipated use without an actual working system will be a very valuable support for their work.
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ISO 9241
“A person's perceptions and responses that result from the
use or anticipated use of a product, system or service."
Specifically, self-‐made or natural objects do not fit into the list, and ‘service’ is a term too broad. According to our views, user experience focuses on interacOon between a person and something that has a user interface.
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Conclusion
In summary, the respondents understand UX as dynamic, context-dependent, and subjective, stemming
from a broad range of potential benefits users may derive from a product.
UX is seen as something new, which must be a part of the HCI domain and
be grounded in UCD practices.
Our survey findings suggest that years of experience and work place seem not
to have a strong impact on the respondents’ perceptions of the
statements or definitions. some socio-cultural factors seem relevant.