The document discusses universal usability, defined as enabling all users, including those with disabilities, to succeed in using information and communication technologies. It outlines the principles of usability in user interface engineering, including five essential quality components: learnability, efficiency, memorability, errors, and satisfaction. Additionally, it highlights challenges, current research, and the role of AI in enhancing user interaction, emphasizing that universal usability goes beyond mere accessibility to optimize user experience.

1. USER INTERFACE ENGINEERING ASSIGNMENT
TOPIC : UNIVERSAL USABILITY
By,
R.Dhanalakshmi MCA(III year),
18352021

2. INDEX
 Universal Usability
 Usability in User Interface Engineering
 Phases and process in User Interface Design
 Five quality components In Usability
 Universal usability differ from accessibility
 Challenges in Universal Usability
 Universal Usability Guidelines
 Current Research development
 Application in Universal Usability
 Conclusion

3. UNIVERSAL USABILITY
 Universal Usability means,
 How people’s are access Information and
communication technological product efficiently and
simply.
 And How it is usable and compelling to all citizens.
(Citizen who affected by Physical impairment and
Visual impairment)
 In this concept, has been commended by Professor
Ben Shneiderman, a computer scientist at the
Human Computer Interaction Lab at University of
Maryland, College Park.

4. UNIVERSAL USABILITY
 Ben Shneiderman, a pioneer in the field of human
computer interaction, defines universal usability as
“enabling all citizens to succeed using communication
and information technology in their tasks.”
 Notice, He does not say, “enabling all citizens to use”, but
rather, “enabling all citizens to succeed”.
 In Universal Usability, Designers who practice universal
usability strive for designs that gracefully accommodate a
diversity of user needs and circumstances.

5. USABILITY IN USER INTERFACE ENGINEERING
 User Interface Engineering is also know as Usability
Engineering.
 Usability Engineering ,it focuses on improving usability
interactive system.
 In The usability, Product can be used by all kinds of users
to achieve specific goal.
 Goal means -> Effectiveness, Efficiency and Satisfaction
 There are many usability Heuristics to improve usability
interactive system and user friendliness with help of
computer interfaces.

7. PHASES AND PROCESS IN USER INTERFACE(UI)
PHASES
AND
PROCESS
(UI)
INFORMATION
ARCHITECTURE PROTOTYPING
USER AND
TASK
ANALYSIS
USABILITY
TESTING
USABILITY
INSPECTION
GRAPHICAL
USER
INTERFACE
DESIGN
FUNCTIONALITY
REQUIREMENT
GATHERING
SOFTWARE
MAINTENANCE

8. FIVE QUALITY COMPONENTS IN USABILITY
 Usability is defined by 5 quality components:
5 QUALITY
COMPONENTSLearnabilit
y
Efficienc
y
Memorabilit
y Errors
Satisfactio
n

9. FIVE QUALITY COMPONENTS IN USABILITY
 Learnability: How easy is it for users to accomplish
basic tasks the first time they encounter the
design?
 Efficiency: Once users have learned the design,
how quickly can they perform tasks?
 Memorability: When users return to the design
after a period of not using it, how easily can they
reestablish proficiency?
 Errors: How many errors do users make, how
severe are these errors, and how easily can they
recover from the errors?
 Satisfaction: How pleasant is it to use the design?

10. UNIVERSAL USABILITY DIFFER FROM ACCESSIBILITY
 Usability Is how easily every citizen can access the
product easily.
 Accessibility means whether the product accessible
to all citizen or not.

11. CHALLENGES IN UNIVERSAL USABILITY

12. UNIVERSAL USABILITY GUIDELINES

13. CURRENT RESEARCH DEVELOPMENT
 Multimodal or Adaptive user interface
 Universal usability of commercial and e-
government websites
 Interface solutions for older adult users and users
with disabilities
 Contextualization of universal usability

14. APPLICATION IN UNIVERSAL USABILITY(AI)
 AI is an emerging technology that promotes efficiency
and convenience. It’s revolutionary changing the way
people interact with machines. Companies generally treat
AI as a technology that takes away the human from the
equation and is improving convenience and productivity.
A recent example is Google AI Assistant (using Google
Duplex technology) that takes away the “labor-intensive
task” of making phone calls and empowers the human to
be more efficient.

15. CONCLUSION
 The goal of universal usability is to enable the
widest possible range of users to benefit from
information and communications services. This goal
is stronger than merely providing access, which
focuses on technology availability and is often tied
to access for users with disabilities.