Thesis - Teknisk Design

o If he or she has a car?o Which brand is her or his car?o Which model is her or his car?FIRST TRIAL WITH THE SIMULATOR WITHOUT THE TOUCH SCREENThe participant was asked to sit in the simulator and adjust the seat. After everythingis set, the participant will have the opportunity to drive the car without interactingwith the touch screen. The reason to do this first trial with the simulator is for theparticipant to feel comfortable with the simulator. The participant will be asked todrive until she or he feels comfortable with it. No data will be taken of this first trial.BASELINE SETAfter the first trial, the baseline of road deviation will be set. To be able to set it theparticipant will drive until reach a stable speed (speed limit is set at 90km/h). Then,the baseline track will be measured for 30 seconds. The data of the baseline is:o Speedo Standard deviation.TRAINING WITH THE TOUCH SCREEN WITH AND WITHOUT HAPTIC FEEDBACKDuring the pilot study after the usability study, it was found that the guessability is null.Thus, the guessability study was not longer included in the usability study, eventhough, the question regarding turning off the haptic feedback on the device wasformulated during the learnability questionnaire. The main reason of this lack ofguessability is the introduction of the new interaction with the touch screen. Thereasons and some solutions will be discussed latter in this thesis.So due to the lack of guessability an introduction to the new way of interactingis explained to the participant. After this introduction, the participant follows atrainee base on the study structure. The participants are allowed to perform as manytrials as wanted. Some data was collected and storage in case it is necessary to beanalysed. The data sheet is attached in the appendix II.TEST WITH AND WITHOUT HAPTIC FEEDBACKTwo blocks of five exercises compose the main test. One block is with enabledhaptic feedback and the other without. There were four participants in the study;half started with the haptic feedback enabled and the other two without. This isdecided in a random way. The five exercises are the same for each participant withsome variations decided in a random way. The exercises were:o Go from the main menu to one of the functions of the device.o Go to the radio and turn the volume to any volume in a certain range.o Go to the radio and change the dial to a certain one.o Go to the e-mail and select any item between a certain interval.o Go to the phone and call or video call a certain contact.The data acquisition during the test is related to the performance (appendix II):o Speedo Deviation of the standard path52