216c5ab74eb24d8e192a9430b446d00e.ppt
- Количество слайдов: 109
What is Usability? More than. . .
Finding Information
Reasons for Failure
So - What is Usability?
Software Quality & Usability
What benefits can usability provide?
Costs
Barriers to embracing usability
The trouble with Users
First strategy - Wait for them to die
Strategy flaws
Strategy flaws
Third strategy - Educate them
Strategy flaw
Designing usable systems - 3 phases
Analysis
Analysis - Understanding the User
Analysis - Understanding the user’s tasks
Questions to Ask
Personas
The Essence of Personas
Mental Model Perceive Uses object Design object
Design
Visibility
Visibility – Good Example
Visibility Example
Visibility Example
Affordance
Affordance - Examples
Affordance - Examples
Affordance in UI
Affordance in UI
Constraints
Types of Constraints
Physical Constraints
Designing them More Logically
Mapping
Mapping
Activity on Mappings
Why is this a Better Design?
Consistency
When Consistency Breaks Down
Internal and External Consistency
Feedback
Scene from a Shopping Mall
Web Navigation 101
Web Navigation 101
In the physical world …
On the Web …
Lack of Web’s Physicality
Definition of Navigation
Significance of Web Navigation
Purpose of Web Navigation
Purpose of Web Navigation
Web Navigation Conventions
Global Navigation
Global Navigation
Site ID (or Logo)
Site ID (or Logo)
Site ID (or Logo)
Site ID (or Logo)
Site ID (or Logo)
Sections
Sub-sections
Utilities
Utilities
Utilities
Utilities
Low-Level Navigation
Low-Level Navigation
Page Names
Page Names
“You are Here” Indicators
“You are Here” Indicators
“You are Here” Indicators
Breadcrumbs
Evaluation
Trunk Test
Trunk Test
Trunk Test
Trunk Test
Trunk Test
Other Evaluation Techniques
Evaluation
Conclusion
References
216c5ab74eb24d8e192a9430b446d00e.ppt