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7. evalution of interactive system

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Kh Ravy

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HUMAN COMPUTER INTERACTION (INTERACTION HOMME-MACHINE) Sethserey SAM
CHAPTER 7: EVALUATION OF INTERACTIVE SYSTEM Software life cycle concerning also user interaction
EVALUATION OF INTERACTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION OF INTERACTION ,[object Object],[object Object],[object Object]
EVALUATION OF INTERACTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A PRIORI EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A PRIORI EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],(Nielsen & Mack, 1994) (Spencer, 2000)
EXPERIMENTAL EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION Semi-structuring interview (Nielsen et al., 1986) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION QUIS (Questionnaire for User Interaction Satisfaction) www.lap.umd.edu/QUIS/ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SUBJECTIVE EVALUATION ,[object Object],[object Object],Reliability adequateness of the task scale of satisfaction Adaptation to training user scale of satisfaction for advances functionalities Learnability scale of perception of the facility of learning Robustness tolerant to errors scale of satisfaction in management of errors
OBJECTIVE EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EXAMINE THE OBSERVATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OBJECTIVE EVALUATION: TEST OF USABILITY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OBJECTIVE EVALUATION: TEST OF USABILITY Usability testing of Nielsen (1993) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Norm ISO 9241-11
OBJECTIVE EVALUATION: TEST OF USABILITY Example norm ISO 9241-11 Reliability adequateness of the task ,[object Object],[object Object],Adaptation to training user ,[object Object],[object Object],Learnability ,[object Object],[object Object],Robustness tolerant to errors ,[object Object],[object Object]
OBJECTIVE EVALUATION: TEST OF ACCEPTATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],After 5 hours of utilization by the novices and 15 days of waiting (learning), 50% of the population of the test must be capable to accomplish 75% of tasks of the test correctly
OBJECTIVE EVALUATION: TEST OF ACCEPTATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION PLAN An evaluation will not provide any result unless if it is well prepared ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION PLAN What paradigm of evaluation to use? Objective (observation) Problems detections Broad range Modify behavior Subjective Less expensive Usage opinion Precision Response rate Predictive (model) Non necessary system Less expensive Limit range Predictive (expert) Expertise May miss out the problems
EVALUATION PLAN When do we use a particular paradigm of evaluation? Field studies Predicative Laboratory usability Quick and dirty
EVALUATION AND DIVERSITY OF USERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION AND DIVERSITY OF USERS Analyze the statistic of result 1 2 3 4 5 6 7 Average Age 37 41 43 54 46 44 21 40.9 Sex F F M M F F M 4F, 3M Education level 4 2 4 4 4 1 2 3.0 PC years 5 2 0 2 6 4 9 4.0 Usage facility 1 2 2 1 2 3 1 1.7 Help quality 1 3 3 1 3 2 2 2.1
EVALUATION AND DIVERSITY OF USERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION: OTHER THAN USERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EVALUATION PLAN: DEONTOLOGY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BIBLIOGRAPHIES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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7. evalution of interactive system

  • 1. HUMAN COMPUTER INTERACTION (INTERACTION HOMME-MACHINE) Sethserey SAM
  • 2. CHAPTER 7: EVALUATION OF INTERACTIVE SYSTEM Software life cycle concerning also user interaction
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  • 23. EVALUATION PLAN What paradigm of evaluation to use? Objective (observation) Problems detections Broad range Modify behavior Subjective Less expensive Usage opinion Precision Response rate Predictive (model) Non necessary system Less expensive Limit range Predictive (expert) Expertise May miss out the problems
  • 24. EVALUATION PLAN When do we use a particular paradigm of evaluation? Field studies Predicative Laboratory usability Quick and dirty
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  • 26. EVALUATION AND DIVERSITY OF USERS Analyze the statistic of result 1 2 3 4 5 6 7 Average Age 37 41 43 54 46 44 21 40.9 Sex F F M M F F M 4F, 3M Education level 4 2 4 4 4 1 2 3.0 PC years 5 2 0 2 6 4 9 4.0 Usage facility 1 2 2 1 2 3 1 1.7 Help quality 1 3 3 1 3 2 2 2.1
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Notas do Editor

  1. A priori: base on theory, logic, fixe rules or forms, etc.
  2. Paradigm: pattern, example, model Cognitive walkthrough: focusing on how easy it is for new users to accomplish tasks with the system Heuristic: Helping to discover or learn
  3. Evident: easy to see or preview
  4. Flagrant : evident Metrique : qui a rapport au m ètre
  5. Retention : a retaining or being retained
  6. Déontologie : Théorie des obligations morale qui régissent une profession Vigueur : Force pour agir (physique ou morale)