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USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101
USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101
USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101
USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101
USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101
Usability!
it makes
people not
hate you!
USABILITY 101
• What is usability?
• Why it’s important
• Ten principles of usability
• Exercise
Agenda
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
What is Usability?
A quality attribute used to evaluate
how easy interfaces are to use.
Usability
Also refers to methods of
improving ease-of-use
during design.
Usability
Usability Testing ≠ Focus Groups
Usability Testing ≠ Focus Groups
what people do
Usability Testing ≠ Focus Groups
what people do what people say
Users are not designers
Usability is not...
user experience
Usability is not...
user experience
Usability is not...
minimalism
user experience
Usability is not...
minimalism
customer opinions
user experience
Usability is not...
minimalism
customer opinions
common sense
user experience
Usability is not...
minimalism
customer opinions
common sense
good design
user experience
Usability is not...
minimalism
customer opinions
common sense
good design
a set of rules
→
→
→
→
→
Efficiency
Learnability
Error
Management
Satisfaction
Memorability
Usability is all about
Interaction
Design
Usability is 1/4 of UX
Usability
Information
Architecture
Visual
Design
Interaction
Design
Usability is 1/4 of UX
Usability
Information
Architecture
Users Content
Context
Visual
Design
Interaction
Design
Usability is 1/4 of UX
Usability
Information
Architecture
Users Content
Context
Visual
Design
Interaction
Design
Usability is 1/4 of UX
Usability
Information
Architecture
Users Content
Context
Principles of
Usability






Visual
Design
Interaction
Design
Usability is 1/4 of UX
Usability
Information
Architecture
Users Content
Context
Principles of
Usability






Visual
Design
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
Why is usability important?
Good Usability
Is a good return on investment
Good Usability
Is a good return on investment
is a competitive advantage
Good Usability
Is a good return on investment
is a competitive advantage
makes design adequate
Good Usability
Introduction to Usability
usability usability
usability usability
visual design, content + development
usability usability
user
experience
visual design, content + development
Bad Usability
makes people feel dumb
Bad Usability
makes people feel dumb
Bad Usability
is disrespectful
makes people feel dumb
Bad Usability
is disrespectful
damages our clients’ credibility
Where would you rather put your money?
the only usability equation that matters
Value > Pain
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101
You are not the user
What is this called?
What is this called?
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
10 rules to design things that are perfectly adequate
Usability Principles
1 Recognition rather than recall
Usability Principles
Place items on the page where and when users need
them as they move through the system.
Don’t force people to remember things.
Recognition rather than recall
Usability Principles
Recognition rather than recall
Usability Principles
Recognition rather than recall
Usability Principles
2
Match between system and the real
world
Usability Principles
Speak the user’s language.
Use familiar words, phrases and concepts,
rather than system- or business-oriented terms.
Match between system and the real world
Usability Principles
Match between system and the real world
Usability Principles
3 Consistency and standards
Usability Principles
People have used hundreds of interfaces before they
arrived at yours.
They’ll be expecting certain patterns of how things
should be named and how they work.
Consistency and standards
Usability Principles
Consistency and standards
Usability Principles
4 Error prevention
Usability Principles
Help users not make errors in the first place.
Provide guidance and helpful design.
Error prevention
Usability Principles
Error prevention
Usability Principles
5 Emergency exits
Usability Principles
Users often make mistakes.
Help users avoid disaster by providing escape hatches
and “undo” functionality.
Emergency Exits
Usability Principles
Emergency Exits
Usability Principles
6
Help users recognize, diagnose, and
recover from errors
Usability Principles
Error messages should be expressed in plain language,
precisely indicate the problem, and constructively
suggest a solution.
Help users recognize, diagnose, and recover from errors
Usability Principles
Help users recognize, diagnose, and recover from errors
Usability Principles
7 Visibility of system status
Usability Principles
The system should always keep users informed about
what is going on, through appropriate feedback within a
reasonable time.
Visibility of system status
Usability Principles
Visibility of system status
Usability Principles
Visibility of system status
Usability Principles
8 You are here
Usability Principles
Interfaces should answer the question:
where am I, and where am I not?
Process interfaces should show the number of steps,
progress, and the expected duration.
You are here
Usability Principles
You are here
Usability Principles
You are here
Usability Principles
You are here
Usability Principles
You are here
Usability Principles
9 Flexibility and efficiency of use
Usability Principles
Design a flexible interface that can be used by both
novice and advanced users.
Allow users the freedom to explore content, and a
reasonable amount of control over their experience.
Flexibility and efficiency of use
Usability Principles
Flexibility and efficiency of use
Usability Principles
Flexibility and efficiency of use
Usability Principles
Flexibility and efficiency of use
Usability Principles
Flexibility and efficiency of use
Usability Principles
10 Minimalist design
Usability Principles
The elements of an interface’s design should not
obstruct its function.
Every extra piece of information competes with the
relevant bits of information and diminishes their
visibility.
Minimalist design
Usability Principles
Minimalist design
Usability Principles
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101
it’s peanut butter jelly time
Exercise

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Introduction to Usability

  • 1. USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 USABILITY 101 Usability! it makes people not hate you!
  • 2. USABILITY 101 • What is usability? • Why it’s important • Ten principles of usability • Exercise Agenda
  • 3. USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 What is Usability?
  • 4. A quality attribute used to evaluate how easy interfaces are to use. Usability
  • 5. Also refers to methods of improving ease-of-use during design. Usability
  • 6. Usability Testing ≠ Focus Groups
  • 7. Usability Testing ≠ Focus Groups what people do
  • 8. Usability Testing ≠ Focus Groups what people do what people say
  • 9. Users are not designers
  • 12. user experience Usability is not... minimalism
  • 13. user experience Usability is not... minimalism customer opinions
  • 14. user experience Usability is not... minimalism customer opinions common sense
  • 15. user experience Usability is not... minimalism customer opinions common sense good design
  • 16. user experience Usability is not... minimalism customer opinions common sense good design a set of rules
  • 18. Interaction Design Usability is 1/4 of UX Usability Information Architecture Visual Design
  • 19. Interaction Design Usability is 1/4 of UX Usability Information Architecture Users Content Context Visual Design
  • 20. Interaction Design Usability is 1/4 of UX Usability Information Architecture Users Content Context Visual Design
  • 21. Interaction Design Usability is 1/4 of UX Usability Information Architecture Users Content Context Principles of Usability Visual Design
  • 22. Interaction Design Usability is 1/4 of UX Usability Information Architecture Users Content Context Principles of Usability Visual Design
  • 23. USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 Why is usability important?
  • 25. Is a good return on investment Good Usability
  • 26. Is a good return on investment is a competitive advantage Good Usability
  • 27. Is a good return on investment is a competitive advantage makes design adequate Good Usability
  • 30. usability usability visual design, content + development
  • 33. makes people feel dumb Bad Usability
  • 34. makes people feel dumb Bad Usability is disrespectful
  • 35. makes people feel dumb Bad Usability is disrespectful damages our clients’ credibility
  • 36. Where would you rather put your money?
  • 37. the only usability equation that matters Value > Pain
  • 38. USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101 You are not the user
  • 39. What is this called?
  • 40. What is this called?
  • 41. USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 10 rules to design things that are perfectly adequate Usability Principles
  • 42. 1 Recognition rather than recall Usability Principles Place items on the page where and when users need them as they move through the system. Don’t force people to remember things.
  • 43. Recognition rather than recall Usability Principles
  • 44. Recognition rather than recall Usability Principles
  • 45. Recognition rather than recall Usability Principles
  • 46. 2 Match between system and the real world Usability Principles Speak the user’s language. Use familiar words, phrases and concepts, rather than system- or business-oriented terms.
  • 47. Match between system and the real world Usability Principles
  • 48. Match between system and the real world Usability Principles
  • 49. 3 Consistency and standards Usability Principles People have used hundreds of interfaces before they arrived at yours. They’ll be expecting certain patterns of how things should be named and how they work.
  • 52. 4 Error prevention Usability Principles Help users not make errors in the first place. Provide guidance and helpful design.
  • 55. 5 Emergency exits Usability Principles Users often make mistakes. Help users avoid disaster by providing escape hatches and “undo” functionality.
  • 58. 6 Help users recognize, diagnose, and recover from errors Usability Principles Error messages should be expressed in plain language, precisely indicate the problem, and constructively suggest a solution.
  • 59. Help users recognize, diagnose, and recover from errors Usability Principles
  • 60. Help users recognize, diagnose, and recover from errors Usability Principles
  • 61. 7 Visibility of system status Usability Principles The system should always keep users informed about what is going on, through appropriate feedback within a reasonable time.
  • 62. Visibility of system status Usability Principles
  • 63. Visibility of system status Usability Principles
  • 64. Visibility of system status Usability Principles
  • 65. 8 You are here Usability Principles Interfaces should answer the question: where am I, and where am I not? Process interfaces should show the number of steps, progress, and the expected duration.
  • 71. 9 Flexibility and efficiency of use Usability Principles Design a flexible interface that can be used by both novice and advanced users. Allow users the freedom to explore content, and a reasonable amount of control over their experience.
  • 72. Flexibility and efficiency of use Usability Principles
  • 73. Flexibility and efficiency of use Usability Principles
  • 74. Flexibility and efficiency of use Usability Principles
  • 75. Flexibility and efficiency of use Usability Principles
  • 76. Flexibility and efficiency of use Usability Principles
  • 77. 10 Minimalist design Usability Principles The elements of an interface’s design should not obstruct its function. Every extra piece of information competes with the relevant bits of information and diminishes their visibility.
  • 80. USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 USABILITY 101 USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 101USABILITY 10101 it’s peanut butter jelly time Exercise