Results of Usability Test

The usability satisfaction bar chart indicates the satisfaction score of the participants on each function that we listed from the usability specification.

According to the chart, Top up the money or the round of trips into the rabbit card and purchase ticket in ticket machine are the tasks that participants didn’t perform it frequently. In addition, the only one participant who has performed all the task and usability testing is participant 2.

This bar chart show the usability specification target, which indicate how many users can play the prototype and achieve the measurement of usability specification

Green color indicates the number of participant who performs the task better than our target measurement.

Red color indicates the number participant who performs the task below than our target measurement.

According to the chart above, the sign in and buy ticket in ticket page of application are the tasks that all users can perform and meet the specification measurement. While using the ticket machine to top up the rabbit card or purchase the ticket are the tasks that have lowest number of users that can achieve the target successfully.

• The information in route page is hard to read.
• There are a lot of features in the prototype, which can affects to participants understanding and make them confused.
• Some features have the numerous step to finished, which make users feel it complicated.

• It would be better if the prototype can be used with the lower complexity.
• The route page should be improve in the resolution that allow users to zoom in, zoom out.
• Provide the interface in Thai language.
• Provide the sharing QR code feature that can send to the our application as another choice from share it to the social media as image file.

Buying the ticket online by using the application is comfortable to the passengers of BTS Skytrain. This is because the users can buying the ticket before they arrive at the station and they don’t have to wait for the queue. Moreover, the ticket machine can assist the customers to top up their rabbit card and buy the ticket at the stations smoothly.

The prototype contains a lot of feature and link pages. Some participants concern about the user friendly and advise us to improve in the interface, which can support the users to perform the task easier. In addition, the route page would be better if the users can zoom in to look at the detail more clearly because the detail is hard to read and understand as users have to read it repeatedly.

• Develop the prototype in order to provide the lower complexity, so the users can use it with more comfortable.
• Redesign some pages to improve the user friendly level (e.g. route page).
• Develop the prototype to support the Thai language.
• Add another choice for sharing QR code feature to let the users share QR code within the application, which we develop.

From the usability testing results, we discover there are some points of features and interfaces that we have to improve. In case of the features to make users satisfy and comfortable to use, we need to work on the function and reduce the complexity of it in order to assist the users on doing the process efficiently such as in the top up process. In addition, we have to improve the interface to increase the level of user friendly. The first issues, which obviously seen is the route page that the information is hard to observe and understand, so we need to fix this issues. Overall, the participants who support and allow us to do the interview of usability testing satisfied in our prototype and hope that our prototype could be used in the real situation in order to assist them for using BTS Skytrain service conveniently.