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MEASURING THE EFFECT OF USABILITY MECHANISM ON USER EFFICIENCY, EFFECTIVENESS AND SATISFACTION

MEASURING THE EFFECT OF USABILITY MECHANISM ON USER EFFICIENCY, EFFECTIVENESS AND SATISFACTION. Marianella Aveledo Diego Mauricio Curtino Agustín De la Rosa Ana María Moreno Universidad Politécnica de Madrid Facultad de Informática Madrid, España. AGENDA. Motivation Objetive Why?

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MEASURING THE EFFECT OF USABILITY MECHANISM ON USER EFFICIENCY, EFFECTIVENESS AND SATISFACTION

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  1. MEASURING THE EFFECT OF USABILITY MECHANISM ON USER EFFICIENCY, EFFECTIVENESS AND SATISFACTION Marianella Aveledo Diego Mauricio Curtino Agustín De la Rosa Ana María Moreno Universidad Politécnica de Madrid Facultad de Informática Madrid, España

  2. AGENDA Motivation Objetive Why? Data collected Pilot test using EasyTheatre tool Experimental test using EasyFlight tool Conclusions Future work

  3. 1. MOTIVATION

  4. MOTIVATION Authors from SE and HCI sustain that a high degree of usability can be attained if the highly impacting mechanisms are implemented in a software application.

  5. 2. OBJETIVE

  6. STARTING FROM Usability as the extent to which a product can be use by specified users to achieve specified goals with EFFECTIVENESS, EFFICIENCY and SATISFACTION in a specified context of use

  7. OBJETIVE Our aim is to study the effect of incorporating some usability mechanism. In particular usability attributes like EFFECTIVENESS, EFFICIENCY and SATISFACTION

  8. 3. WHY?

  9. THERE IS NO EMPIRICAL EVIDENCE OF THE IMPACT OF THE USABILITY MECHANISMS: • Help • Global Undo • System Status Feedback • ProgressFeedback • Warning • Abort • StructuredText Entry • Go back • IN THE USABILITY ATTRIBUTES.

  10. 4. DATA COLLECTED

  11. QUANTITATIVE DATA: Time to complete a task EFFICIENCY Number of clicksorequivalentnavigationalactions RELATIVE EFFICIENCY

  12. QUALITATIVE DATA: Answersprovidedbytheusersto post test questionnaries SATISFACTION Answertothequestion: Wereyouableto complete thetask? EFFECTIVENESS

  13. 5. PILOT TEST USING EASYTHEATRETOOL

  14. A total of 24 subjectsparticipated in theexperiment. Theyweredivided en twogroups: • Control Group (CG) didnot use usabilitymechanisms • Test Group (TG) thatusedbuilt-in usabilitymechanisms

  15. MEAN TEST DURATION IN MINUTES

  16. MEAN INCREASE IN SATISFACTION * STATISTICALLY SIGNIFICANT

  17. 6. EXPERIMENTAL TEST EASYFLIGHTTOOL

  18. A total of 46 subjectsparticipated in theexperiment. Theyweredivided en twogroups: • Control Group (CG) didnot use usabilitymechanisms • Test Group (TG) thatusedbuilt-in usabilitymechanisms

  19. IMPACT ON THE EFFICIENCY ATTRIBUTE * STATISTICALLY SIGNIFICANT

  20. IMPACT ON THE RELATIVE EFFICIENCY ATTRIBUTE *STATISTICALLY SIGNIFICANT

  21. IMPACT ON THE EFFECTIVENESS ATTRIBUTE *STATISTICALLY SIGNIFICANT

  22. IMPACT ON THE SATISFACTION ATTRIBUTE * STATISTICALLY SIGNIFICANT

  23. 7. CONCLUSIONS

  24. Thestucturedtextentrymechanismhad a highimpactover 60% in allusabilityattributes. • Theprogressfeedbackmechanismdidnothavestatisticallysignificanceoneffectivenessattributebecauseusersalways can complete thetask. • WewillcontinueusingEasyFlighttooltoruntestsinvolvingothermechanisms.

  25. 8. FUTURE WORK

  26. To generalize the results with other software application types we developed an even-driven home automation application. We will run a similar experiment with this tool in a very near future.

  27. THANKS !!!!

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