Communication technology in GSM and CDMA is not only used to make a phone call or to send a message (SMS) but also to provide data service. The users of the data service usually choose this media because of its low cost, quick access, and wide coverage area. This research is aimed at exploring the users’ perception about data service system by observing its usability.
Usability of a data service system is a measure of to what extent users can obtain appropriate data from using the provided service. The evaluation of the data service system will be used to develop the system according to the users’ need.
An evaluation of usability in a system by descriptive statistics study will inform the users’ perception about which product is better, GSM or CDMA. This evaluation can be used as consideration in using data service system. Besides, this evaluation enables providers to develop and enhance its service.