• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.4
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• pp.87-95
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• 2017

This study aims to configure what dimensions make up for smart phone after service quality, and how this service quality affects customer satisfaction and customer loyalty. Smart phone market is a market of the device leading the digital convergence as well as positioning itself as one of the national growth driving industry. To survive in this matured market, companies should have to respond actively to radical changes and customers needs in the so-called Smart Revolution environment. Lately, however, the smart phone market is prospected to move from growth phase to mature phase by the scholars. In order to proactively respond to the change in such market condition, companies need to provide absolute advantage in customer loyalty over their competitors by revolutionizing the after-sales service quality. Qualified A/S will lead to service satisfaction and achieve customer loyalty. The empirical analysis results obtained through A/S quality are as follows : First, human quality (attitude, expertise, problem-solvability), environment quality (handling agility, convenience, comfort), service policy quality (quality guarantee, additional service operation) are dimensions that make up for A/S quality. Second, A/S quality dimension showed a significant positive influence on service satisfaction and A/S satisfaction showed a positive influence on customer loyalty as well. Based on this empirical study, we propose some implications for A/S quality improvement. First, human quality dimension has relatively higher influence on A/S satisfaction in case of free A/S, so companies need to solve the product problem completely when consumer's first visit by continual employee education. Second, in case of paid A/S, the service policy quality-especially A/S Warranty period- has higher influence on A/S satisfaction.

• International Journal of Human Ecology
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• v.16 no.2
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• pp.79-88
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• 2015

As information and communications technology (ICT) becomes increasingly integrated into the daily lives of people around the world, it is important to know how the technology is influencing the behaviors of individuals and families. This study looked at the ecology of families as it is related to ICT and the changes to processes that occur as ICT devices and services are integrated into the family. A survey of 1084 families was conducted. Five hundred of the families were from the United States and 584 families were from Korea. Significant differences were found in the use of ICT by Korean and American families although the source of this difference was not clearly identified in this study. Three clusters of families were identified based on their use of devices and services. These were labeled as; 'The Tech Savvy', 'The Wireless Users', 'The In-betweeners', 'The Wired', and 'The Just Mobile'. 'The Tech Savvy' used the greatest variety of ICT technologies and 'The Wired' used the fewest. Other clusters fell in the middle with families seemingly using the devices which met their particular needs. Two factors related to ICT integration into the family were identified. These were related to family intimacy and family relationship maintenance. The family cluster identified as 'Tech Savvy' made significantly greater use of ICT in these relationships and 'The Wired' made the least use of ICT in these areas. The other clusters tended to be between the two ends and tended not to be significantly different from each other in their use of ICT. Finally, models for ICT use by families showed that demographics, nation of origin, types of devices and services used, and attitude and interest in ICT all had a significant impact.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.169-175
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• 2015

The significant changes of convergence study in the 21st century is the shift from theoretical-based instruction to computer-based instruction. This study investigated the student's cognitive engagement in TPB(Theory of Planned Behavior) of accounting information classes in the Digital Convergence Era. Hypothesis test was conducted from 99 accounting information learners from four year course university in the Gyeonggi-do. A questionnaire was given and analyzed. The results showed. First, the TPB variables han a positive effect on intrinsic curiosity of students. Second, the subjective norm of TPB variables could develop student's enjoyment. Subject norm could have a positive effect on enjoyment. The results of this study may contribute to propose desirable ways of improving the psychological states in the relationship between TPB and cognitive engagement. In the future, variables of cognitive engagement will be compliment to analyze.

• Korean Journal of Child Education & Care
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• v.17 no.2
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• pp.115-136
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• 2017

The purpose of this study was to exam the effect of the intergenerational program of character education for young children. For this purpose, the intergenerational program of character education for young children were constructed and implemented based on the previous studies of intergenerational program and of character education linking with nuri-curriculum. The subjects of this study were 24 children aged 3 and 6 elderly people in their 70s. The findings of this study were as follows; First, the elderly-children intergenerational program show the positive effect in order of filial duty, public order, cooperation, consideration, respect and sharing. Second, there were the changes of behavior and attitude from the children toward the elderly.

• Journal of the Korea Society of Computer and Information
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• v.16 no.11
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• pp.145-152
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• 2011

The study analyzed effects of the problem-based learning utilizing cognitive algorithms in elementary mathematics education in terms of academic achievement and math attitude changes. In order to solve the research questions, a cognitive algorithm-based PBL model was derived based on N. Landa's algorithm-based instructional design theory. And the model was applied to a part of second semester math curriculum for 4th grade of an elementary school located in Seoul. The results showed that the PBL utilizing algorithms can be said to have effects on academic achievement. The PBL model is also considered to have positive effects in enhancing mathematical attitudes of the learners.

• Management & Information Systems Review
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• v.4
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• pp.137-159
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• 2000

Recently, the importance of ISP(Information System Planning) has been increased because of rapid change and severe competition in business environments. Furthermore, the role of IS in the organization has included not only the supportive activities but also the strategic activities. Organizations can get the competitive advantages through the strategic use of IT by establishing effective and systematic ISP implementation. The main focus of this study is investigate the relationship among three subunits(organizational factors, the role of IS and effective ISP) based on the contingent settings which the process of ISP is implemented. The reasons that conceptual framework of this study is based on the contingent theory are as follow: First, ISP process itself has a series of complicated work which various elements in a company are involved. ISP externally must have the process to evaluate information technology (technology related with IS). Internally ISP process has a serious of works including determining information requirements to develop successful IS for other functional departments and identifying strategic opportunity of IS aligned with business strategy. Secondly, the activity of ISP is occurring on the continual basis. Business environments in which ISP process has implemented are changing continuously. Specific ISP methodology which was appropriate in a certain period of time does not work any more because of the rapid changes in business environments. For this reason managers can hardly expect successful ISP without considering external environments or internal environments such as organizational or management side. For this study, 240 survey questionnaires were mailed and 71 questionnaires were returned. 57 samples were used for the final analysis and 14 samples were excluded from analysis in that they didn't exercise official and systematic ISP. As the result of analysis, among the internal factors(organizational size, time frame of decision making, budget, management style, organizational culture) organizational culture, management style and time frame of decision making are identified as contingent factors on the effective ISP. The result of this study may have meaning in suggesting the way to develop effective ISP through the formalization of business process, more favorable users attitude toward IS and selection of an appropriate ISP methodology.

• Hwankyungkyoyuk
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• v.22 no.1
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• pp.31-42
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• 2009

Consumer education which changes human value and attitude to attain practice is necessary to solve the problem of environmental, social, and economical sustainability resulted from material and present-oriented consumption and decrease the effect of consumption on the sustainabilities. However, since the present consumer education is biased toward a traditional viewpoint of economical consumption, management of allowances, and rational purchase and its teaching method still stays on memorizing, cramming and one sided lecture, consumer education containing a key value of sustainable development have not been carried out successfully, Specifically, the consumer education in an elementary school treats mainly just on environmental conservation and economical knowledge even though quite much time is arranged in every school year. So, complement of contents such as understanding of relation between natural resources and consumption and the role and responsibility of a consumer is required to emphasis the sustainable development. In this work, a student-oriented educational drama programme for consumer education is developed with respect to an familiar theme of resources such as water, wood, food, and electricity. Educational drama is an efficient teaching method for consumer education of an elementary school student since it makes students experience virtual situation and produce an interest and active participation. How to execute consumer education in an elementary school textbook was analyzed and an educational drama programme was developed and applied, and finally, the programme was qualitatively improved. The paper survey on five teachers practicing the present programme reveals that is it can be affirmatively evaluated since it is familiar to students and leads to their interests and participation. Consequently, it can be confirmed that the present programme can be effective to perform consumer education for sustainable development.

• Journal of the Korean earth science society
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• v.27 no.3
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• pp.269-278
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• 2006

In this study, we used Virtual Reality (VR) materials on an introductory earth science course consisted of thirty six pre-service science teacher program students. Before and after class an instrument of Constructivist Learning Environment Survey (CLES) was administered. The main focus of the CLES was to evaluate how the classroom was prepared for student centered learning environment. The pre and post tests of student perceptions regarding their learning environment were compared in six domains: personal relevance, critical voice, shared control, student negotiation, scientific uncertainty, and attitude. Questionnaire regarding the general perception of the VR materials was administered as well. How future science teachers valued the use of VR materials in their classrooms was found from this study. Based on these results, we intend to contribute for a more complete understanding of the potential of VR materials in achieving better learner-centered classroom environment.

• Journal of the Korean Home Economics Association
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• v.37 no.11
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• pp.139-156
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• 1999

Food choice is influenced by many factors including physical, social, psychological and food technological developments. This research is based on the survey on Puchon housewives dietary culture according to season and special occasions and the current consumption pattern of traditional fermented foods. The objective is to find out the current consumption and to use this data as the principal element needed to explore changes in consumption patterns and to uphold and develop the consumption of traditional fermented food. Questionnaires were collected 282 housewives in Puchon city. Data were analysed with SAS software package for t-test, F-test and Duncan’s multiple range test. Results of relationship between dietary culture of Puchon housewives and consumption patterns of traditional fermented food items; 1. If we look at seasonal foods, Puchon housewives responded that they normally prepare traditional foods for such special occasions as Chusok(89%), New Year(84%) and January full moon Day(77%). For family celebrations, they cook on their in-laws birthdays(91%), their husbands birthday(84%), childrens birthdays(73%) and their own birthday(32%). They also responded that they eat out on their own birthday(41%), on Christmas Day(19%), on childrens birthdays(17%) and on their husbands birthday(11%). 2. If we look at the age of housewives and their dietary culture, more young housewives tend to eat out on their own, their husbands and their childrens birthdays. As for their educational background, less educated housewives tend to prepare flood at home on New Years Day, while more educated housewives would eat out on their own birthdays. As for the type of family, mere housewives in nucleus families eat out on Christmas Days compared to those in extended families. Also, those in extended families tend to make food at home rather than eating out on their own birthdays. In case of the husbands birthday, there was some difference according to family income (p<0.03).

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.277-282
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• 2006

It is well known that Kalman filtering is an optimal real-time data fusion method for GPS/INS integration. However, it has some limitations in terms of stability, adaptability and observability. A Kalman filter can perform optimally only when its dynamic model is correctly defined and the noise statistics for the measurement and process are completely known. It is found that estimated Kalman filter states could be influenced by several factors, including vehicle dynamic variations, filter tuning results, and environment changes, etc., which are difficult to model. Neural networks can map input-output relationships without apriori knowledge about them; hence a proper designed neural network is capable of learning and extracting these complex relationships with enough training. This paper presents a GPS/INS integrated system that combines Kalman filtering and neural network algorithms to improve navigation solutions during GPS outages. An Extended Kalman filter estimates INS measurement errors, plus position, velocity and attitude errors etc. Kalman filter states, and gives precise navigation solutions while GPS signals are available. At the same time, a multi-layer neural network is trained to map the vehicle dynamics with corresponding Kalman filter states, at the same rate of measurement update. After the output of the neural network meets a similarity threshold, it can be used to correct INS measurements when no GPS measurements are available. Selecting suitable inputs and outputs of the neural network is critical for this hybrid method. Detailed analysis unveils that some Kalman filter states are highly correlated with vehicle dynamic variations. The filter states that heavily impact system navigation solutions are selected as the neural network outputs. The principle of this hybrid method and the neural network design are presented. Field test data are processed to evaluate the performance of the proposed method.