No abstract

Elaborating on the rapid evolution of mobile internet services in Korea, this article investigates consumers' perceptions and attitudes toward mobile Internet services through person-to-person questionnaires. The study tried to find out "how" consumers perceived different mobile services from the consumers perspectives: expectation, satisfaction, and fulfillment of that expectation. A new construct of perceived fulfillment of expectation was suggested in the study and used to explain consumers' attitudes toward the mobile Internet services in 2004 and in 2006. After examining what the consumers actually said, it was found that consumers' expectation was fulfilled differently for different service categories. The expectation was more fulfilled in system attributes, that is, network-wise, for personalization and information services, and in contents attributes for entertainment services. It was also observed that consumers of different age groups showed different patterns of fulfillment of expectation with the same services. Even though most of the past studies on mobile telephony concentrated on attitudes and behaviors of teenagers toward the mobile telephone services, the result of this study indicates that the consumers in their 20s and 30s can provide more insight for future directions of mobile Internet services. The newly defined construct could well explain the differences among the various consumer groups' perceptions and attitudes.

No abstract

No abstract

A universal input device for both text and Braille input was developed in a Glove-typed interface using all the joints of the four fingers and thumbs of both hands. The glove-typed device works as of now for input of Korean characters, numbers, and Braille characters using mode conversion. Considering the finger force and the fatigue from repeated finger motions, the input switch was made of conductible silicon ink, which is easy to apply to any type of surface, light, and enduring. The usability testing with (1) blind subjects showed the performance matching with a commercial Braille keypad, and (2) non-blind subjects for Korean characters showed comparable performance with cellular phone input keypads, but inferior to conventional keyboard. Subjects' performance showed that the chording gloves can input approximately 122 Braille characters per minute and 108 words per minute in Korean character. The chording gloves developed in our study is expected to be used with common computing devices such as PCs and PDAs, and can contribute to replacing the Braille-based note-takers with less expensive computing devices for blind users.