Cse 333

Front 1

What is HCI?

Back 1

Human COmputer Interaction, using design, evaluation and implementation of interacting systems and examining human interaction with these systems.

Front 2

HCI includes what fields?

Back 2

Psychology, COmputer Science, Instructional and Graphic Designers, Technical Writers, HUman factors and Ergonomic experts, anthropologists and sociologists

Front 3

Usability Vs. "User Friendly"

Back 3

"user Friendly" is vague and subjective and therefore difficult to measure
Usability is how well a user can use the systems functionality, a well-designed interface system is one where the user can do any task with little or no hassle

Front 4

Usability Engineering Systems

Back 4

1) Requirement Analysis
2) Design(Task Analysis, Design guideline and principles)
3) Implementation (prototyping, GUI Implementation)
4)Evaluation (Prototype, Expert, Predictive, Empiri

Front 5

Goals of Requirement Analysis

Back 5

-To determine the User Needs
-The tasks and subtasks
-Even the occasional and exceptional tasks
-Functionality must match need, can't be inadequate or excessive
-To ensure reliability
-transparent actions, user's faith, privacy, security and integrity--To Promote
-Standardization, Integration, Consistency, and Portability
-Complete project on time and within budget

Front 6

Usability Measures:

Back 6

-is what you need to do to evaluate the user population
-define the target user community
-evaluate multiple design alternatives
--keep in mind that user communities evolve and changes
-5 human factors for evalution
1) TIme to learn
2) Speed of performance
3) Rate of errors by users
4) Retention overtime
5) subjective satisfaction
-Trade-offs in design options
-Test interfaces with users via mockup or prototypes

Front 7

Usability Motivations:
Industrial and Commerical

Back 7

-So more industries will be interested in you system
-Reduce cost, such as training and errors
-Speed of performance(High Volume Transactions)
-Subjective Satisfaction

Front 8

Usability Motivations:
Office, Home, Entertainment

Back 8

Ease of learning and low error rates are essential for success
-Low Cost is necessary because of fierce competition

Front 9

Usability Motivations:
Exploratory, Creative and Cooperative systems

Back 9

Collaborative work
-benchmarks are hard to describe
-Interface should absorb user into their task domain

Front 10

Usability Motivations:
Social-Technical Systems

Back 10

Privacy Security
Ease of learning for trust

Front 11

Universal Usability

Back 11

-Physical abilities and physical workplaces
-Vision, Touch, Hearing, Ergonomics
-Cognitive and Perceptual Abilities
-Know the human cognitive process, to interpret sensory input rapidly and to initiate complex actions makes modern computer systems possible

Front 12

Context

Back 12

-The factors that we know and bring to a situation(mindset)
-These can have a profound effect on the usability of user interfaces

Front 13

Recognition Vs. Recall

Back 13

It is easier to recognize things than to recall tem

Front 14

Memory Aids

Back 14

Slogans/catch phrases
Familar pictures for tasks

Front 15

Goals of Requirement Analysis

Back 15

-To determine the User Needs
-The tasks and subtasks
-Even the occasional and exceptional tasks
-Functionality must match need, can't be inadequate or excessive
-To ensure reliability
-transparent actions, user's faith, privacy, security and integrity--To Promote
-Standardization, Integration, Consistency, and Portability
-Complete project on time and within budget

Front 16

Usability Measures:

Back 16

-is what you need to do to evaluate the user population
-define the target user community
-evaluate multiple design alternatives
--keep in mind that user communities evolve and changes
-5 human factors for evalution
1) TIme to learn
2) Speed of performance
3) Rate of errors by users
4) Retention overtime
5) subjective satisfaction
-Trade-offs in design options
-Test interfaces with users via mockup or prototypes

Front 17

Usability Motivations:
Industrial and Commerical

Back 17

-So more industries will be interested in you system
-Reduce cost, such as training and errors
-Speed of performance(High Volume Transactions)
-Subjective Satisfaction

Front 18

Usability Motivations:
Office, Home, Entertainment

Back 18

Ease of learning and low error rates are essential for success
-Low Cost is necessary because of fierce competition

Front 19

Usability Motivations:
Exploratory, Creative and Cooperative systems

Back 19

Collaborative work
-benchmarks are hard to describe
-Interface should absorb user into their task domain

Front 20

Usability Motivations:
Social-Technical Systems

Back 20

Privacy Security
Ease of learning for trust

Front 21

Universal Usability

Back 21

-Physical abilities and physical workplaces
-Vision, Touch, Hearing, Ergonomics
-Cognitive and Perceptual Abilities
-Know the human cognitive process, to interpret sensory input rapidly and to initiate complex actions makes modern computer systems possible

Front 22

Context

Back 22

-The factors that we know and bring to a situation(mindset)
-These can have a profound effect on the usability of user interfaces

Front 23

Recognition Vs. Recall

Back 23

It is easier to recognize things than to recall tem

Front 24

Memory Aids

Back 24

Slogans/catch phrases
Familar pictures for tasks

Front 25

Waterfall Model

Back 25

Documentation driven, creating and going back in feed back loops
-not a good approach for user interface design
-User interface is risky, users are not involved in validation until acceptance testing
Can lead to throwing a lot of carefully tested code