Usability evaluation of new kansei interface feature vs. existing interface feature in automotive navigation system

Mohd Jefri Chand, Alwis Nazreen (2016) Usability evaluation of new kansei interface feature vs. existing interface feature in automotive navigation system. [Project Paper] (Submitted)

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Abstract

OBJECTIVE: This study aims to evaluate the usability of new kansei navigation system interface features versus. Existing interface design features in automotive navigation system. METHODOLOGY: Study population consist of participants which are chosen using purposive sampling technique consist of male professional driver (PO) and non-professional driver (NPO) of a local University in Malaysia. A total of 60 participants ranging from 18 to 39 years old participated in this study. Participants were tested using a customized driving simulator which participant will drive according to the route shown by the GPS navigation system( GPS system based on kansei versus existing system) Drivers were tested in terms of their 1) completion time for each task given 2) the number of error produce from each task 3) the satisfaction level from each feature in the GPS system using System Usability Scale (SUS) 4) a kansei survey to measure participant understanding and perception in usability of GPS interface designs. A Counterbalance method was used in order to eliminate order biased participant. A total of 10 minutes was taken to complete the overall task. Wilcoxon Sign Rank was used to compare all objectives. RESULT: Result for driving completion time for both PO and NPO, shows that kansei GPS system (PO, mean = 2.49±0.66 min, NPO, mean = 2.18±0.71 min) had significantly shorter completion time (p=0.013) compared to the existing system (PO, mean = 2.75±0.66 min, NPO, mean = 2.44±0.74 min). For the number of errors, kansei GPS system showed a significantly lowered driving error (p <0.05) (PO, mean = 8.86±6.55, NPO, mean = 7.23±6.03) compared to existing GPS System (PO, mean = (3.7±7.94 NPO, mean =10.6±7.6). For the satisfaction level showed no significant different in satisfaction for kansei GPS System both (PO, mean score = 61.7±19.4 NPO, mean score = 66.58±21.9) compared to existing GPS (PO, mean score = 66.58±21.9 NPO, mean score = 63.58±20.9) (p>0.05). In term of kansei Survey, shows that there is a significantly higher scoring tor kansei GPS system for both (PO, mean score = 3.6±0.99 and NPO, mean score = 3.69±1.44) compared with existing (PO, mean score =3.l5±0.88 NPO, mean score = 3.68±0.18) (p<0.05). CONCLUSION: The new kansei GPS system performed better in reducing the task completion time, reducing the numbers of driving error and better perception on usability compared to existing GPS system. However, both professional and nonprofessional were satisfied using kansei and existing GPS system. Keywords: Kansei, GPS, Simulator, Error, Completion time, Driver, SUS

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms Norafizah Radzuan
Date Deposited:	28 Oct 2024 02:00
Last Modified:	28 Oct 2024 02:00
URI:	http://psaspb.upm.edu.my/id/eprint/2103

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