SlideShare uma empresa Scribd logo
1 de 23
Cognitive
                                Usability Using Human Factors to
                        Michael Crabb
                        Vicki L. Hanson   Influence Future Online
                          Andy Cobley     Usability Requirements




Friday, 26 October 12
Cognitive
                                Usability Using Human Factors to
                        Michael Crabb
                        Vicki L. Hanson   Influence Future Online
                          Andy Cobley     Usability Requirements




Friday, 26 October 12
?
                                ?
                   ?
               HUMAN
                                smartphone
                                                 Printer
                                             tablet
               ?
                        ?   ?
                                     ?
  ?


                                                                 MAC
                                                                       Calculator

                                    Computer                                  Browse




                                                                                        Move
                                     Mouse


                                                      Keyboard
                                PC                           Monitor                        Touch


                                                                          Interaction
                                                                              write



                                                                                               Type
                                                                                    Swipe             Adjust



Friday, 26 October 12
Auditory Ability
                                                  Internet Confidence
                 Internet Usage


                                  Crystallised Intelligence
                                                HUMAN
                                                Cognitive      Long Term Memory


                                                Psychology      Processing Speed
             Fluid Intelligence




                                                                                                             Short Term
                                                                                Visual Processing




                                                                                                             Memory
                                                              Reading Ability
                                                                                                    Writing Ability



Friday, 26 October 12
Fluid Intelligence                       Long Term Memory




                                                                           Internet Usage




                   Processing Speed                                   Internet Confidence
                                             Short Term Memory



Friday, 26 October 12
Friday, 26 October 12
Test   Test   Test
                        x      y      z
                        Test   Test   Test
                         a      b      c
                        Test   Test   Test
                         j      k      l
                        Test   Test   Test
                         1     2       3
Friday, 26 October 12
Letter Sets
        Odd One Out




                                                               Fluid Intelligence
                        I   BCDE   FGHI   JKLM   PRST   VWXY


                    II      CERT   KMTV FHXZ BODQ       HJPR


                  III       KGDB   DFIM   KIFB   HJMQ   LHEC




Friday, 26 October 12
Meaningful Memory
        Remembering Connections




                                              Long Term Memory
                        hammer    excellent
                         rock      rough
                         roof       flat




Friday, 26 October 12
Meaningful Memory
        Remembering Connections




                                                                    Long Term Memory
            rock
                        dirt   smooth    flat     jagged   large
            roof
                    level      rough    sloping   leaky    sturdy
            hammer
                        big    rough     good     small    heavy



Friday, 26 October 12
Gf                         Gf                         Gf



          IC                            Ps    IC                   Ps    IC                   Ps




          IU                            Gsm   IU                   Gsm   IU                   Gsm




                             Glr                        Glr                        Glr




                        participant x              participant Y              participant z



Friday, 26 October 12
turn theory into
                                  practice




Friday, 26 October 12
government     banking   local attractions




                 shopping    news         medical



Friday, 26 October 12
measurements
                                               observed
                        Human Factors           website Factors
                        ✦Fluid Intelligence     ✦Scrolling and Paging
                        ✦Processing Speed       ✦Links
                        ✦Short Term Memory      ✦Forms
                        ✦Long Term Memory       ✦Writing Content
                        ✦Internet Confidence    ✦Page Layout
                        ✦Internet Usage         ✦Searching
                        ✦Demographics           ✦Headings
                                                ✦Images
                                                ✦Navigation
                                                ✦Text Appearance




Friday, 26 October 12
measurements
                                                            observed
                        Human Factors                        humans observing websites
                        ✦Fluid Intelligence                  ✦Disorientation Questions
                        ✦Processing Speed                    ✦Disorientation (Reversed) Questions
                        ✦Short Term Memory                   ✦Ease of Use Questions
                        ✦Long Term Memory
                        ✦Internet Confidence
                        ✦Internet Usage
                        ✦Demographics




                        website Factors                      websites observing humans
                        ✦Scrolling   and Paging              ✦Pages  Visited
                        ✦Links                               ✦Path Through Website
                        ✦Forms                               ✦Time on Page
                        ✦WritingContent                      ✦Links Selected
                        ✦Page Layout                         ✦IR Question Refresh
                        ✦Searching
                        ✦Headings
                        ✦Images
                        ✦Navigation
                        ✦Text Appearance



Friday, 26 October 12
testing
                                                   hypothesis
                               Cognitive factors have no impact on an individuals ability to
                        H0 :   perform Information Retrieval tasks


                               Older and Younger adults use the same cognitive factors
                        H0 :   when performing Information Retrieval tasks


                               Cognitive factors have a negative impact on an individuals
                        H0 :   ability to perform Information Retrieval tasks




Friday, 26 October 12
defining an
                                                 older adult
                         Older Adults
                              Max: 89
                              Mean: 70
                               Min: 62



                        Younger Adults
                              Max: 28
                             Mean: 22
                               Min: 18




Friday, 26 October 12
Older
                            Adults




                Younger                         s1      s2    s3
                 Adults

                     independent     Kurtosis         Multiple
                   sampled t-test     Testing        Regression



Friday, 26 October 12
Multiple Regression
                                     Cognitive factors have no impact on an individuals ability
                          H0 :   Younger and Older Adults
                                     to perform Information Retrieval tasks



                                                       45.1%
                Cognitive Factors

                                             32.5%
                        Tech Usage                                   31.0%
                                                                                Cognitive Factors



                                 10.4%                                          9.7%
                    Age                                                                 Tech Usage
                                                                                            0.1%
                                                                                                   Age
                                 s   1
                                             s2        s3           s3        s2        s   1




Friday, 26 October 12
Multiple Regression
                                    Cognitive factors have a negative impact on an individuals
                                    Older and Younger adults use the same cognitive factors
                           H0 :    Younger and Older Adults
                                    abilityperforming Information Retrieval tasks
                                    when to perform Information Retrieval tasks

                                   older Adults                                                   Younger Adults


                                                                                                          Internet Confidence
                                           Short Term Memory




                                                                    Disorientation
         Disorientation




                                               Fluid Intelligence
                                            Internet Confidence

                                                                                                        Fluid Intelligence
                                                                                     Short Term
                               Processing Speed                                       Memory


                                                                                      Long Term Memory
                          Internet Usage                                              Processing Speed

Friday, 26 October 12
whats
                                                  next?
                        Human Factors                 humans observing websites
                        ✦Fluid Intelligence           ✦Disorientation Questions
                        ✦Processing Speed             ✦Disorientation (Reversed) Questions
                        ✦Short Term Memory            ✦Ease of Use Questions
                        ✦Long Term Memory
                        ✦Internet Confidence
                        ✦Internet Usage
                        ✦Demographics




                        website Factors               websites observing humans
                        ✦Scrolling   and Paging       ✦Pages  Visited
                        ✦Links                        ✦Path Through Website
                        ✦Forms                        ✦Time on Page
                        ✦WritingContent               ✦Links Selected
                        ✦Page Layout                  ✦IR Question Refresh
                        ✦Searching
                        ✦Headings
                        ✦Images
                        ✦Navigation
                        ✦Text Appearance



Friday, 26 October 12
Friday, 26 October 12
Thank
                                   You
                                    any questions?


        email: michaelcrabb@computing.dundee.ac.uk
        twitter: @mike_crabb

Friday, 26 October 12

Mais conteúdo relacionado

Destaque

10b motor system voluntary control
10b motor system voluntary control10b motor system voluntary control
10b motor system voluntary controlPS Deb
 
Внешний вид сотрудников ОАО Газпром нефть
Внешний вид сотрудников ОАО Газпром нефтьВнешний вид сотрудников ОАО Газпром нефть
Внешний вид сотрудников ОАО Газпром нефтьKatie Danilova
 
Evaluation Question 5 - How did you attract address your audience?
Evaluation Question 5 - How did you attract address your audience?Evaluation Question 5 - How did you attract address your audience?
Evaluation Question 5 - How did you attract address your audience?JACMedia
 
How to get ready for the fast future - #CCHUC15
How to get ready for the fast future - #CCHUC15How to get ready for the fast future - #CCHUC15
How to get ready for the fast future - #CCHUC15Tom Hood, CPA,CITP,CGMA
 
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介Nobuyuki Matsui
 
Homenagem Aos Quartistas
Homenagem Aos QuartistasHomenagem Aos Quartistas
Homenagem Aos Quartistasguestc79f8f
 
Stress Ratio Trajectory Simulations
Stress Ratio Trajectory SimulationsStress Ratio Trajectory Simulations
Stress Ratio Trajectory SimulationsAnthony Andrews
 
Data scientist vccorp 2016
Data scientist vccorp 2016Data scientist vccorp 2016
Data scientist vccorp 2016Tuan Hoang
 

Destaque (12)

10b motor system voluntary control
10b motor system voluntary control10b motor system voluntary control
10b motor system voluntary control
 
Внешний вид сотрудников ОАО Газпром нефть
Внешний вид сотрудников ОАО Газпром нефтьВнешний вид сотрудников ОАО Газпром нефть
Внешний вид сотрудников ОАО Газпром нефть
 
Evaluation Question 5 - How did you attract address your audience?
Evaluation Question 5 - How did you attract address your audience?Evaluation Question 5 - How did you attract address your audience?
Evaluation Question 5 - How did you attract address your audience?
 
How to get ready for the fast future - #CCHUC15
How to get ready for the fast future - #CCHUC15How to get ready for the fast future - #CCHUC15
How to get ready for the fast future - #CCHUC15
 
Gino SA
Gino SAGino SA
Gino SA
 
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介
【第17回八子クラウド座談会 LT】CloudConductor+VDCのご紹介
 
Homenagem Aos Quartistas
Homenagem Aos QuartistasHomenagem Aos Quartistas
Homenagem Aos Quartistas
 
Stress Ratio Trajectory Simulations
Stress Ratio Trajectory SimulationsStress Ratio Trajectory Simulations
Stress Ratio Trajectory Simulations
 
Data scientist vccorp 2016
Data scientist vccorp 2016Data scientist vccorp 2016
Data scientist vccorp 2016
 
Lista de buena fe
Lista de buena feLista de buena fe
Lista de buena fe
 
Cement Plug Leakage
Cement Plug LeakageCement Plug Leakage
Cement Plug Leakage
 
Portfolio - Ismael Carrasco Fricker
Portfolio - Ismael Carrasco FrickerPortfolio - Ismael Carrasco Fricker
Portfolio - Ismael Carrasco Fricker
 

Mais de Mike Crabb

Hard to Reach Users in Easy to Reach Places
Hard to Reach Users in Easy to Reach PlacesHard to Reach Users in Easy to Reach Places
Hard to Reach Users in Easy to Reach PlacesMike Crabb
 
Accessible and Assistive Interfaces
Accessible and Assistive InterfacesAccessible and Assistive Interfaces
Accessible and Assistive InterfacesMike Crabb
 
Accessible Everyone
Accessible EveryoneAccessible Everyone
Accessible EveryoneMike Crabb
 
The Peer Review Process
The Peer Review ProcessThe Peer Review Process
The Peer Review ProcessMike Crabb
 
Managing Quality In Qualitative Research
Managing Quality In Qualitative ResearchManaging Quality In Qualitative Research
Managing Quality In Qualitative ResearchMike Crabb
 
Analysing Qualitative Data
Analysing Qualitative DataAnalysing Qualitative Data
Analysing Qualitative DataMike Crabb
 
Conversation Discourse and Document Analysis
Conversation Discourse and Document AnalysisConversation Discourse and Document Analysis
Conversation Discourse and Document AnalysisMike Crabb
 
Ethnographic and Observational Research
Ethnographic and Observational ResearchEthnographic and Observational Research
Ethnographic and Observational ResearchMike Crabb
 
Doing Focus Groups
Doing Focus GroupsDoing Focus Groups
Doing Focus GroupsMike Crabb
 
Doing Interviews
Doing InterviewsDoing Interviews
Doing InterviewsMike Crabb
 
Designing Qualitative Research
Designing Qualitative ResearchDesigning Qualitative Research
Designing Qualitative ResearchMike Crabb
 
Introduction to Accessible Design
Introduction to Accessible DesignIntroduction to Accessible Design
Introduction to Accessible DesignMike Crabb
 
Accessible Everyone
Accessible EveryoneAccessible Everyone
Accessible EveryoneMike Crabb
 
Texture and Glyph Design
Texture and Glyph DesignTexture and Glyph Design
Texture and Glyph DesignMike Crabb
 
Pattern Perception and Map Design
Pattern Perception and Map DesignPattern Perception and Map Design
Pattern Perception and Map DesignMike Crabb
 
Dealing with Enterprise Level Data
Dealing with Enterprise Level DataDealing with Enterprise Level Data
Dealing with Enterprise Level DataMike Crabb
 
Using Cloud in an Enterprise Environment
Using Cloud in an Enterprise EnvironmentUsing Cloud in an Enterprise Environment
Using Cloud in an Enterprise EnvironmentMike Crabb
 
Teaching Cloud to the Programmers of Tomorrow
Teaching Cloud to the Programmers of TomorrowTeaching Cloud to the Programmers of Tomorrow
Teaching Cloud to the Programmers of TomorrowMike Crabb
 
Sql Injection and XSS
Sql Injection and XSSSql Injection and XSS
Sql Injection and XSSMike Crabb
 
Forms and Databases in PHP
Forms and Databases in PHPForms and Databases in PHP
Forms and Databases in PHPMike Crabb
 

Mais de Mike Crabb (20)

Hard to Reach Users in Easy to Reach Places
Hard to Reach Users in Easy to Reach PlacesHard to Reach Users in Easy to Reach Places
Hard to Reach Users in Easy to Reach Places
 
Accessible and Assistive Interfaces
Accessible and Assistive InterfacesAccessible and Assistive Interfaces
Accessible and Assistive Interfaces
 
Accessible Everyone
Accessible EveryoneAccessible Everyone
Accessible Everyone
 
The Peer Review Process
The Peer Review ProcessThe Peer Review Process
The Peer Review Process
 
Managing Quality In Qualitative Research
Managing Quality In Qualitative ResearchManaging Quality In Qualitative Research
Managing Quality In Qualitative Research
 
Analysing Qualitative Data
Analysing Qualitative DataAnalysing Qualitative Data
Analysing Qualitative Data
 
Conversation Discourse and Document Analysis
Conversation Discourse and Document AnalysisConversation Discourse and Document Analysis
Conversation Discourse and Document Analysis
 
Ethnographic and Observational Research
Ethnographic and Observational ResearchEthnographic and Observational Research
Ethnographic and Observational Research
 
Doing Focus Groups
Doing Focus GroupsDoing Focus Groups
Doing Focus Groups
 
Doing Interviews
Doing InterviewsDoing Interviews
Doing Interviews
 
Designing Qualitative Research
Designing Qualitative ResearchDesigning Qualitative Research
Designing Qualitative Research
 
Introduction to Accessible Design
Introduction to Accessible DesignIntroduction to Accessible Design
Introduction to Accessible Design
 
Accessible Everyone
Accessible EveryoneAccessible Everyone
Accessible Everyone
 
Texture and Glyph Design
Texture and Glyph DesignTexture and Glyph Design
Texture and Glyph Design
 
Pattern Perception and Map Design
Pattern Perception and Map DesignPattern Perception and Map Design
Pattern Perception and Map Design
 
Dealing with Enterprise Level Data
Dealing with Enterprise Level DataDealing with Enterprise Level Data
Dealing with Enterprise Level Data
 
Using Cloud in an Enterprise Environment
Using Cloud in an Enterprise EnvironmentUsing Cloud in an Enterprise Environment
Using Cloud in an Enterprise Environment
 
Teaching Cloud to the Programmers of Tomorrow
Teaching Cloud to the Programmers of TomorrowTeaching Cloud to the Programmers of Tomorrow
Teaching Cloud to the Programmers of Tomorrow
 
Sql Injection and XSS
Sql Injection and XSSSql Injection and XSS
Sql Injection and XSS
 
Forms and Databases in PHP
Forms and Databases in PHPForms and Databases in PHP
Forms and Databases in PHP
 

Cognitive Usability: Using Human Factors to Influence Future Online Usability Requirements

  • 1. Cognitive Usability Using Human Factors to Michael Crabb Vicki L. Hanson Influence Future Online Andy Cobley Usability Requirements Friday, 26 October 12
  • 2. Cognitive Usability Using Human Factors to Michael Crabb Vicki L. Hanson Influence Future Online Andy Cobley Usability Requirements Friday, 26 October 12
  • 3. ? ? ? HUMAN smartphone Printer tablet ? ? ? ? ? MAC Calculator Computer Browse Move Mouse Keyboard PC Monitor Touch Interaction write Type Swipe Adjust Friday, 26 October 12
  • 4. Auditory Ability Internet Confidence Internet Usage Crystallised Intelligence HUMAN Cognitive Long Term Memory Psychology Processing Speed Fluid Intelligence Short Term Visual Processing Memory Reading Ability Writing Ability Friday, 26 October 12
  • 5. Fluid Intelligence Long Term Memory Internet Usage Processing Speed Internet Confidence Short Term Memory Friday, 26 October 12
  • 7. Test Test Test x y z Test Test Test a b c Test Test Test j k l Test Test Test 1 2 3 Friday, 26 October 12
  • 8. Letter Sets Odd One Out Fluid Intelligence I BCDE FGHI JKLM PRST VWXY II CERT KMTV FHXZ BODQ HJPR III KGDB DFIM KIFB HJMQ LHEC Friday, 26 October 12
  • 9. Meaningful Memory Remembering Connections Long Term Memory hammer excellent rock rough roof flat Friday, 26 October 12
  • 10. Meaningful Memory Remembering Connections Long Term Memory rock dirt smooth flat jagged large roof level rough sloping leaky sturdy hammer big rough good small heavy Friday, 26 October 12
  • 11. Gf Gf Gf IC Ps IC Ps IC Ps IU Gsm IU Gsm IU Gsm Glr Glr Glr participant x participant Y participant z Friday, 26 October 12
  • 12. turn theory into practice Friday, 26 October 12
  • 13. government banking local attractions shopping news medical Friday, 26 October 12
  • 14. measurements observed Human Factors website Factors ✦Fluid Intelligence ✦Scrolling and Paging ✦Processing Speed ✦Links ✦Short Term Memory ✦Forms ✦Long Term Memory ✦Writing Content ✦Internet Confidence ✦Page Layout ✦Internet Usage ✦Searching ✦Demographics ✦Headings ✦Images ✦Navigation ✦Text Appearance Friday, 26 October 12
  • 15. measurements observed Human Factors humans observing websites ✦Fluid Intelligence ✦Disorientation Questions ✦Processing Speed ✦Disorientation (Reversed) Questions ✦Short Term Memory ✦Ease of Use Questions ✦Long Term Memory ✦Internet Confidence ✦Internet Usage ✦Demographics website Factors websites observing humans ✦Scrolling and Paging ✦Pages Visited ✦Links ✦Path Through Website ✦Forms ✦Time on Page ✦WritingContent ✦Links Selected ✦Page Layout ✦IR Question Refresh ✦Searching ✦Headings ✦Images ✦Navigation ✦Text Appearance Friday, 26 October 12
  • 16. testing hypothesis Cognitive factors have no impact on an individuals ability to H0 : perform Information Retrieval tasks Older and Younger adults use the same cognitive factors H0 : when performing Information Retrieval tasks Cognitive factors have a negative impact on an individuals H0 : ability to perform Information Retrieval tasks Friday, 26 October 12
  • 17. defining an older adult Older Adults Max: 89 Mean: 70 Min: 62 Younger Adults Max: 28 Mean: 22 Min: 18 Friday, 26 October 12
  • 18. Older Adults Younger s1 s2 s3 Adults independent Kurtosis Multiple sampled t-test Testing Regression Friday, 26 October 12
  • 19. Multiple Regression Cognitive factors have no impact on an individuals ability H0 : Younger and Older Adults to perform Information Retrieval tasks 45.1% Cognitive Factors 32.5% Tech Usage 31.0% Cognitive Factors 10.4% 9.7% Age Tech Usage 0.1% Age s 1 s2 s3 s3 s2 s 1 Friday, 26 October 12
  • 20. Multiple Regression Cognitive factors have a negative impact on an individuals Older and Younger adults use the same cognitive factors H0 : Younger and Older Adults abilityperforming Information Retrieval tasks when to perform Information Retrieval tasks older Adults Younger Adults Internet Confidence Short Term Memory Disorientation Disorientation Fluid Intelligence Internet Confidence Fluid Intelligence Short Term Processing Speed Memory Long Term Memory Internet Usage Processing Speed Friday, 26 October 12
  • 21. whats next? Human Factors humans observing websites ✦Fluid Intelligence ✦Disorientation Questions ✦Processing Speed ✦Disorientation (Reversed) Questions ✦Short Term Memory ✦Ease of Use Questions ✦Long Term Memory ✦Internet Confidence ✦Internet Usage ✦Demographics website Factors websites observing humans ✦Scrolling and Paging ✦Pages Visited ✦Links ✦Path Through Website ✦Forms ✦Time on Page ✦WritingContent ✦Links Selected ✦Page Layout ✦IR Question Refresh ✦Searching ✦Headings ✦Images ✦Navigation ✦Text Appearance Friday, 26 October 12
  • 23. Thank You any questions? email: michaelcrabb@computing.dundee.ac.uk twitter: @mike_crabb Friday, 26 October 12