• The KIPS Transactions:PartD
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• v.9D no.6
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• pp.971-980
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• 2002

As the importance of knowledge management is being recognized, there is a significant amount of increase for interest in data warehousing. On-Line Analytical Processing (OLAP) systems can effectively make use of data warehouses. Although there are many commercial OLAP products, they have been developed without any kind of standard resulting in poor data exchange and difficulty in interfacing among the OLAP products. In this paper we propose an OLAP metadata interchange model that can be used among different OLAP products and have implemented an OLAP metadata interchange system that can interchange the cubes created from the metadata. XML is used for the OLAP metadata model and the user interface is Web-based, which makes it easier to interchange metadata among different OLAP products. Users can experience the different analysis environments of different products without the need to learn the complex cube creation process for each product. By extending this research to design a common query language that can be used among OLAP products, OLAP products should be able to more easily talk to one another.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.1
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• pp.311-332
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• 2011

The purpose of this study was to establish core elements required for the implementation of multicultural library services, to analyze the features of each element, and to develop a model of effective multicultural library services. This model was aimed to improve multicultural services and programs currently managed on a short-term basis by public libraries in Korea and help those libraries develop more systematic and long-term multicultural services. To proceed with this study, the literature review, a case study and a survey(the exploratory factor analysis, T-test and ANOVA analysis) were conducted. In this study, it is found that more effective operation of multicultural services in public libraries requires cooperation and integration with not only other libraries and related social and educational institutions in a community, but also international network. Based on this idea, the model of operating multicultural services in public libraries in Korea was proposed in this study.

• The Journal of Korean Association of Computer Education
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• v.7 no.4
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• pp.77-91
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• 2004

The standardization of learner information is needed for exchanging learner information in e-learning system with another educational institution. And also it is needed for providing customized educational service to the learner's characteristics. The purpose of this study is to develop standardization model of learner information that is focused learner's characteristics and performance in higher educational situation. Earlier researches related to the standardization of learner information are analyzed and added some ideas from instructional theory for dealing with meaningful information about learners. The draft standardization model of learner information with 33 of items in 3 areas is proposed. For the validation of this model proposed, we surveyed from 26 of universities that have been experienced e-learning service. It was divided into mandatory and optional items to the result of the survey.

• Journal of Digital Contents Society
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• v.11 no.4
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• pp.529-536
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• 2010

Currently many people are awfully concerned about smart device in domestic and foreign mobile market. The need of smart device has been rapidly increased. Unlike a feature phone smart devices provide us with an intuitive interface which is easy to control. They are enable to smoothly interact between user and device. Though higher market outlook, there is a lack of empirical research on user interface in touch screen based on smart device. In this paper, we propose the touch interface conceptual model concentrating on user based on the result of previous research. Materials of this research are three kinds of smart devices which are currently released. Through expert's depth interview and observation of user, user's cognitive actions in smart device are defined. Since the method of the touch interface which is suitable for the action has been derived, we have proposed the conceptual model of user's cognitive action. This research imply to offer the excellent design guideline in order to implement touch interface to optimize user experience in touch screen based on smart device to release in the future.

• Korean Journal of Construction Engineering and Management
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• v.18 no.5
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• pp.50-58
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• 2017

The efficient communication process is essential to guarantee the completeness of design and secure the quality to meet the contractor's needs. However, using the existing communication methods based on the design and documents, it is difficult to effectively understand the drawings and specifications that are very complicated, and sufficient technical experiences would be required. Ineffective and inefficient communication among users, designers and project participants during the design process would raise the possibility of functional interferences of the object, induce conflicts, cause a design change, and accordingly incur losses of the project in terms of cost and time. The purpose of this study is to suggest improvement direction of communication in accordance with the requirements, by investigating the present state and the project participants' understanding of design communication. And also, it presents the application model of QFD that the project participants could share and define, and feedback the requirements as well as conducting analysis of improvement factors based on the survey.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.7501-7507
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• 2015

This study analyzed the rate of unmet dental care service for the disabled who were judged to require the dentistry due to oral health-related problems and those reasons, and also examined the oral health status according to the unmet dentistry. 375 subjects, who were 19 years or older and completed oral health examination and a survey, among 444 responded positive of disability registration after participation in National Health and Nutrition Examination Survey(NHANES), were analyzed. Disability type was classified into 6 kinds(physical disability, brain lesions, sensory defect, developmental disability, mental disorder, endocrine disorder). Participants had 128 of their dental care needs unmet when it was required. 'Financial burden' was the main reason, with the subject of 49.2%, followed by 'lower on the priority scale' were 18.0%. The high frequency and progression permanent teeth caries experiencs and periodontal status of their dental disease were confirmed. In availability aspect of dentistry resources, it is required for using dentistry service smoothly through providing sufficient proper dental care service comparing with the number of the disabled.

• Journal of the Korean Society of Child Welfare
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• no.60
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• pp.25-57
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• 2017

The effects of regular and active leisure activities on positive growth and development in adolescents are widely known. In our society, however, it is challenging to enjoy or expand such activities due to diverse constraints. Under unfavorable circumstances, this study attempted to investigate the application of time availability for liberal leisure activities as a way to help adolescents engage in active leisure activities. Specifically, this study examined the relationship between time availability (both individual and structural) and the time invested in leisure activities at youth training centers which support such leisure activities. The study found the following results: As both individual and structural time availability expanded, the time invested in leisure activities increased as well. Based on these results, this study discussed policy and practice implications regarding the support of adolescents' leisure activities.

• Journal of Convergence for Information Technology
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• v.9 no.11
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• pp.47-54
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• 2019

This study is a descriptive research study to investigate the effect of core basic nursing practice education on clinical competence of nursing students. The data was collected from 169 3rd and 4th grade students in the Department of Nursing, College of Nursing, G province. The data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, multiple regression. Core experience is negatively correlated with performance confidence (r=.446, p<.001) was negatively correlated with clinical performance (r=-.206, p=.001). It was found to have a negative correlation with (r=-.346, p<.001). In this study, the factors affecting clinical performance were self-confidence (${\beta}=-.317$, p<.001), and clinical performance was 11.3%. Therefore, effective practical education program for improving clinical performance is needed for smooth practical education of nursing students.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.629-632
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• 2009

The interactive art and design can be interpreted as an intelligent system in the aspect of engineering. Because this information is treated and analyzed in real time and then such results is expressed in various media such as image, graphic, sound and etc. after these information are input through the sensor, camera and etc., for the efficient communication between human and production, namely, to communicate the interactive reaction, The image utilizing such interactive is being gradually developed as it widens its region in various art design fields. This research is purposed to make the system, which lets the citizens contact the information naturally by mixing the information for the environment with the interactive art of the arty type, and which lets the citizens feel the surrounding environment directly. This research will construct the live mood in the space itself and is utilized for the public art that can be directly experienced. It can provide the experience in the participation type that acquires the information being harmonized with the human naturally in the more developed type than the concept of the existing static installation. Therefore, it is sincerely required to research the interactive art in utilizing the public design.

• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.12-19
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• 2021

For strengthening the national defense, the function of tactical network is essential. tactics and strategies in wartime situations are based on numerous information. Therefore, various reconnaissance devices and resources are used to collect a huge amount of information, and they transmit the information through tactical networks. In tactical networks that which use contention based channel access scheme, high-speed nodes such as recon aircraft may have performance degradation problems due to unnecessary channel occupation. In this paper, we propose a learning-backoff method, which empirically learns the size of the contention window to determine channel access time. The proposed method shows that the network throughput can be increased up to 25% as the number of high-speed mobility nodes are increases.