| In improving the quality of service PT. KRL Commuter Line performs various innovations to provide convenience to the commuter line users. One of the innovations is using of ticket vending machine or Commuter Line Vending Machine (C-VIM) for ticket purchase transaction. On the implementation of new systems there are often found some obstacles that affect the system performance. This also happens to the C-VIM system. This research is aming to determine the usability level of C-VIM based on the dimension of usability. Usability dimension examined the efficiency, error, learnability, memorability and satisfaction. To measure the usability we used usability testing method such as performance measurement, retrospective think aloud (RTA), kuesioner System Usability Scale (SUS) dan Questionnaire For User Interaction Satisfaction (QUIS). The usability score based on the SUS questionnaire are 66.25. In terms of efficiency give the results that the C-VIM has not a good level of efficiency. In terms of error, learnability dan memorability dimension give the result that C-VIM has a good level. The QUIS skor are 60,99 it means User Satisfaction of C-VIMis good enough. |