2013, Vol.8, No.4

Journal of Knowledge Information Technology and Systems 2023 KCI Impact Factor : 0.89

pISSN : 1975-7700 / eISSN : 2734-0570
https://journal.kci.go.kr/kkits

Based on the expectation disconfirmation theory, the research model was generated to examine the effects of the expectation, perceived performance and disconfirmation on mobile applications user satisfaction and to investigate the difference between smartphone user group and tablet user group. As a result, perceived performance was found to be the most influential factor on user satisfaction in both groups. Smartphone and tablet users were significantly different in Latent means analysis of all factors. In smartphone user group, expectation was found to have positive effects on the users satisfaction. But expectation negative effected on the users satisfaction in tablet user group. A significant and positive relationship is detected between expectation and perceived performance in smartphone user group, but there is no significant relationship in tablet user group.

Chronic diseases such as cancer, diabetes, hypertension because of preferring westernized eating habits and senile disease because of entering aging society cause increasing national medical care expenditure. So today’s society are asked to prepare a countermeasure about burden of medical expenses and improve radical medical care. the U-healthcare, health and medical care on offer based on information technology, is medical care system without any limit of time and space. In this paper, we describes implementation of the program that deals with numerical data such as urine, blood sugar and blood pressure on CDA(Clinical Document Architecture) Document for Medical device in the form of IT convergence. User’s bio-data in CDA document can be used EMR(Electronic Medical Record) and expected prevention of disease before therapy through linkage with external medical institution, so reducing national health expenditure is possible.

Hydration heat which occurs when cement and water blend up together has a major role in safety of a concrete building. When measuring the hydration heat, a stick shaped temperature sensor connected by a line to a recorder paper is planted in the concrete to measure the heat. But this method is always difficult to measure hydration heat in poor surroundings that the work condition is as such construction field. In this research to solve this problem, Mote based on Tiny OS is used to find that if hydration heat can be measured wirelessly and if the data from this research is usable. As a result, the temperature from our method was recorded 1.2℃ higher than conventional one, but considering the water proof wrapping of temperature sensor mote, we show that tne measured data through our method can be use in construction field effectively.