the role of hci research in ucd design
DESCRIPTION
My presentation at Xtreme Labs, January 13, TorontoTRANSCRIPT
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HCI Research in UCD
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The Role of HCI Research in User-Centered Design (UCD)
Sepandar Sepehr, ABD, MSc.
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Agenda
1. Intro
– Definitions
2. I convince You that UCD is important!
3. Explain why research is important
4. Give examples of HCI research
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About Me
• Undergraduate in Computer Software Engineering
– Meanwhile: Web design/development
• Master’s in Computer Science
• PhD in Information Systems (Business School)
– Teaching eBusiness and Enterprise Resource Planning (SAP)
– Research on Adoption, in particular Video Games
• Game-Based Learning, Gamification
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About You
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It’s All about Pervasive Computing
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Definitions
UX
• “UX is the totality of the effect or effects felt by a user
as a result of interaction with … a system, device, or
product, including the influence of usability,
usefulness, and emotional impact during interaction,
and savoring the memory after interaction.”
The UX Book
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Definitions (cont’d)
• Discipline under which researchers study “interactive computing systems for human use”
• Not primarily Human nor Computer– It is the study of bridge between them
• Contributing fields: Computer Science, Psychology, Design, Information Systems, …
• There are different paradigms– Design Science, Behavioural Research, …
HCI
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Definitions (cont’d)
• A Philosophy or a Methodology
• Focus on designing for and involving end users– User Advocacy
• Usability is NOT UCD– It could be the Goal
UCD/HCD
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UCD Cycle
From the UX Book:
Create Interaction Design Concepts
Understand User Work and Needs
Verify and Refine Interaction Design
Realize Design Alternatives
Design
PrototypeAnalyze
Evaluate
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Why Should We Care?
• Software success rate:– 24% Failed
– 44% Challenged
• More than 50% of failure is due to – Poor requirements
gathering
– Not only functional!
Data from: http://goo.gl/2OkixGraph from: http://goo.gl/J9Lla
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Why Should We Care? (cont’d)
• $300M button: http://goo.gl/8pUb
• The average business metrics improvement after a usability redesign is 83%
• 81% of customers willing to pay more for a better UX
Stats from: http://goo.gl/nKKDu& http://goo.gl/Uv4yb
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Why is UCD Important?
• It all starts with: Frustration
• Perception is the key!
Let’s play a game:
Read What You See!(The game is from: http://goo.gl/o4AVA)
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Ca y u rea t is?W at ar ou rea in?Yu a e not r adi g th s
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Why is UCD Important?
• It all starts with: Frustration
• Perception is the key!– The past: our experience
– The present: the current context
– The future: our goals
From Designing with the mind in mind book
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Where Do We Start?
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Where do We Start? (cont’d)
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Perspective Matters
• Design guidelines explain goals
not actions
• They are like laws not recipes:
– lawyers should interpret
• We need theory-based
approaches:
– “we have a hodgepodge collection
of do-it-yourself categories and
various collections of rules-of-
thumb” (Gray and Salzman, 1998)
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Research Role
From DTUI Book:
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UCD
From the UX Book:
Create Interaction Design Concepts
Understand User Work and Needs
Verify and Refine Interaction Design
Realize Design Alternatives
Design
PrototypeAnalyze
Evaluate
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How do We Work?
• This is one of the main perspectives!
• Let’s imagine a case: predicting if people will use a product
Perceived Usefulness
Perceived Ease of Use
Actual Use
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Technology Acceptance Model
Perceived Usefulness
Perceived Ease of Use
Actual Use
Behavioural Intention to
Use
Attitude Toward Using
External Variables
For more info: http://goo.gl/znfMP
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Perception in e-Commerce
Ref: http://goo.gl/zqLUe
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Perception in e-Commerce (cont’d)
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Human Image
Ref: http://goo.gl/FsVGd
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Human Image (cont’d)
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Trust in e-Commerce
Ref: http://goo.gl/QMKPz
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Recent Approaches: NeuroIS
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Recent Approaches: NeuroIS
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Recent Approaches: NeuroIS
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Recent Approaches: NeuroIS
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Online Shopping Example (music)
Ref: http://goo.gl/DQ4SW
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Conclusion
• Adopt UCD– If you can, pay attention to research
– “Scaling Your UX Strategy” by HBR http://goo.gl/ZtPDs
• HCI provides the toolbox– Refer to knowledgeable people
• Conferences and Journals:– CHI conference, SIGCHI, IxDA and
UPA groups, CACM journal
• Books: e.g.
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Questions?
Thank You!
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Other Useful Links
• About UCD:– http://www.usabilityprofessionals.org/usability_resources/about
_usability/what_is_ucd.html
– http://www.sapdesignguild.org/editions/edition10/ucd_overview.asp
– http://www-01.ibm.com/software/ucd/ucd.html
• List of useful books: http://www.uiwizards.com/suggestedReading.html