Thesis - Teknisk Design

SpeedAffects cognitive workload?DALI (Driving Activity Load Index)SATISFACTION:To determine the satisfaction with the prototype two sorts of information will be used.SAMQuestionnaire:After learning how it is used, will you say it is easy to know what is happening in thedevice without looking at them when the haptic feedback is turn on?Will you say that haptic feedback had helped you in this in the usage?In which task do you think haptic feedback has helped you most?Will you prefer in any task the option without haptic feedback? In which one? Why?If this touch screen had been installed in your car and you are able to turn off thehaptic feedback will you do it?4.6 ResultsFirst of all, it must be stressed, that due to the lack of time no more than fourparticipants could be part of the usability study. Thus, the collected data is really littleand no information on performance could be found. Nonetheless, the collecteddata and the results will be shown here.The participants in the study were one woman and three men, ranging from 32to 35 years old. They get their driving license between 13 and 15 years ago. Two ofthem drive daily, another twice a month and the last one once a month. The twopeople who drive daily own a car, which brands are Toyota and Volvo. For the twothat do not have their own car, there is one who is a member of a car pool.There is some information that must be taken into consideration when lookingat the data. Participant two, must be looked in a different way that any other in thestudy. It was highlighted during the product the little guessability that the devicehave in relation with the new way of interacting. But, this case go further more intothat, the participants were teach in the new way of interacting with the device. Eventhough, the necessity of navigating was highlighted several times during the studythe participant could not help himself clicking. The automatic way of interacting ofthe participant was difficult to change in a short period of time. That was stressed bythe participant in the learnability questionnaire “I could not feel any hapticfeedback”. For him, both blocks were the same.54