• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.23-26
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• 2004

최근 정보통신서비스 시장은 다양한 요인에 의해 서비스 사업자간의 경쟁심화와 고객요구수준의 향상 등의 추세가 강화되고 있으며, 경쟁양상 측면과 고객이 사업자에게 요구하는 서비스 제공특성 등의 측면에서 많은 변화가 일어나고 있다. 특히, 정보통신서비스에 대한 서비스 제공 품질수준과 관련하여 SLA (서비스수준협약)의 중요도는 점차 증대하고 있으나, 대부분 해외의 선진사레나 고객의 요구내용 (VOC)을 여과 없이 반영해서 제공하는 추세여서, 사업자의 입장에서는 SLA를 제공하는 과정에서 다양한 유형의 문제점을 안고 있으며, 실질적인 효과를 거두고 있는 사례를 찾아보기 힘든 상황이다. 이와 같은 배경에서, 본 논문에서는 최근 다양한 분야에서 폭 넓게 활용되고 있는 6 시그마 방법론에서 제시하고 있는 다양한 도구들을 활용하여, 사업자가 SLA 제공체계를 수립하는 과정에서 필요한 서비스품질 보증항목의 도출 및 보증수준의 설정, 측정과 관련된 다양한 요소에 대한 설정 및 관리방법, 보상수준의 설정 등에 대한 체계적인 제공방법에 대해서 제시하고자 한다.

• Mineral and Industry
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• v.29
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• pp.1-17
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• 2016

점토광물은 자연 산출되는 광물로써 양이 풍부하고 가격이 저렴하여 여러 가지 산업자원으로써 오래전부터 다양하게 활용되어 왔다. 전통적인 주요 활용분야로는 제지 및 코팅 산업의 충진제, 내화재, 세라믹, 유리섬유, 시멘트 등에 90% 이상이 사용되어왔다. 최근에야 고무, 플라스틱 및 페인트의 물성 강화용 충진제로, 넓은 표면적을 활용한 촉매제로 일부 사용되고 있지만 대부분 판상용 점토광물을 대상으로 하고 있다. 고령토가 국내 생산 주요 품목에 들어가지만 그 비중은 2014년 기준 1.9%로 낮으며, 그나마 자급율도 77% 수준이라 수입에 의존하고 있다. 생산되는 고령토의 양이 매년 감소하고 있는 추세이며, 2014년 기준 고품질인 Wa와 Wb의 생산량이 각각 600 톤과 227 톤으로 미미한 수준이며 P급이 4.1만 톤 수준이라 부가가치가 매우 낮은 상품 중의 하나로 보인다. 다행히 우리나라에서 생산되는 고령토의 많은 부분이 할로이사이트 계열 고령토이고, 할로이사이트의 독특한 나노튜브 형태는 신소재 개발과 더불어 부가가치가 높은 새로운 활용분야를 개척하기 아주 적절한 광물이어서 그 특성과 산업적 활용 특성을 중심으로 최신 연구동향과 활용분야를 소개하고자 한다.

• Journal of Korean Elementary Science Education
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• v.41 no.4
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• pp.673-689
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• 2022

To understand seasonal changes it is necessary to understand the relationship between celestial bodies in a three-dimensional space, and to this end, modeling activities in which students directly construct, use, evaluate, and modify three-dimensional models are important. In this study, the process of elementary school students using globes and light bulbs to model Earth's motion in a three-dimensional space as a cause of seasonal changes was analyzed. Seventeen sixth graders participated in the modeling process. After exploring phenomena and concepts related to seasonal change, students constructed models using globes and bulbs and used them to explain seasonal changes. Video data recording students' modeling process, students' activity sheets, and transcripts of post-interview were used as research data, and data triangulation was conducted. The modeling level analysis framework was also developed based on previous studies. In particular, the framework was developed in detail in this study in consideration of the concept of Earth's motion as well as understanding model and implementing modeling. In the final analysis framework, the 3D modeling level was classified from level 1 to level 3, and student performance that may appear at each level was specified. As a result of the study, there were two main levels of modeling using globes for elementary school students to explain seasonal changes. The rotation and tilt of the axis of rotation and revolution of the earth were considered but the level at which empirical evidence was not used (level 2), the level at which empirical evidence was used to explain seasonal chages (level 3). However, even when students use empirical evidence, it did not lead to the construction of a scientific model. In this study, the cause was explored in relation to the characteristics of the tool used for modeling.

• Journal of the Korean School Mathematics Society
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• v.22 no.3
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• pp.257-275
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• 2019

Technology-based convergence education is being emphasized for students in the era of the fourth industrial revolution. In math education, students need to increase their capabilities in the future by having them experience mathematical problems using robots and sensors, a key technology in the era of the fourth industrial revolution. To this end, it is necessary to present educational uses for educational robots in relation to math and curriculum from a 'mathematics education perspective' and analyze its educational use in relation to the mathematics and curriculum, considering the role of mathematics at the base of the process of exploring real-world phenomena and solving problems. Based on the analysis of Van Hiele levels of development in geometry and the LOGO activity level of Olson et al.(1987), this study analyzed and presented the level of LEGO Mindstorm activity, a representative educational Robot capable of collecting and analyzing data and programming in the form of block language, in the first to fourth level.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.43-48
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• 2020

This study analyzed the level of digital informatization and the level of human relationship satisfaction in the disabled group. The digital informatization level of the disabled refers to the level of smart access, smart capability, and smart utilization. For the sampling of persons with disabilities, the survey was conducted for persons aged 7 to 69 who were registered under the Welfare for Persons with Disabilities Act. Regression analysis utilized SAS 9.3.s through vitalization of local communities, and information education for the disabled is also important. The analysis results are as follows. First, the higher the digital access level of the disabled, the higher the level of interpersonal satisfaction. Second, the higher the digital information capability level of the disabled, the higher the level of interpersonal satisfaction. Third, the higher the level of digital information utilization of the disabled, the higher the level of interpersonal satisfaction. As a result, the higher the digital information level of the disabled, the higher the satisfaction level in the interpersonal relationship of the disabled. In addition, it was found that careful attention and policy review are needed to resolve the digital information gap of the government for the disabled who are marginalized groups. Therefore, it is necessary to provide the expansion of universal services of the marginalized groups including the disabled. In addition, it is important to form a culture in which the community embraces the marginalized class through vitalization of local communities, and information education for the disabled is also important.

• Journal of Digital Convergence
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• v.11 no.3
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• pp.127-138
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• 2013

The age of social network has arrived. Social media is the various online media for sharing of opinions and experiences and open for internet users' participation. As the new communication tools, social media has been in the limelight, threatening the traditional media as alternative media. In globalization, country image is seen as the source of competitiveness of a country. The goal of this study is to examine what impact does the utilization of social media has on country image, and we conducted our analysis in two aspects of social media utilization, usage volume and usage diversity. In addition, we examined the impact of factors that form the country image on purchase intention. The analytical results show that media usage volume positively affects country image, people image, political image and media usage diversity has significant effects on economical image, people image and political image.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.3
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• pp.58-75
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• 2009

As practicalization and commercialization of the technologies invented from the national R&D(Research & Development) project has been emerging as an important issue, the need for a tool for R&D project management has been increased. Technology Readiness Levels model(TRL) has currently been used for R&D project management because it provides distinctive definition of the nine levels in the progress of technology development starting from the basic research level to the utilization level. However, it is difficult to adopt the model for a large-scale national R&D project in which multiple research projects are involved simultaneously. In addition, TRL demands evaluation of research projects done by relevant experts and offers no specific measures determining the level of technology development. This study uses Delphi method to develop the measurement system helping to determine technology readiness levels for the technologies invented in a large scale national R&D project. The proposed model includes definition and measurement scles for each level in TRL.

• International Commerce and Information Review
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• v.17 no.2
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• pp.253-284
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• 2015

More manufacturing companies tend to outsource their logistics functions to logistics service providers to ensure their own competitiveness than before. This paper investigates the differences between customer perceptions and expectations on three key logistics outsourcing decisions. For testing logistics service qualities, a research model which employs a SERVQUAL model was developed and a survey targeting manufacturing companies has been conducted. The average difference of logistics service level between customer perceptions and expectations was derived as 8% from a result of gap analyses. The findings here reveal the level of service quality of Korean logistics service providers as well as suggest core capabilities for them in order for gaining a competitive edge on the competitors and improving their performances.

• Journal of The Korean Association of Information Education
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• v.18 no.4
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• pp.483-490
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• 2014

Smart classrooms have been set up nationwide to utilize smart devices for teaching and learning in the knowledge- based society, As this trend might quickly spread, we have investigated the utilization levels, and issues around the facilities from the experienced teachers. In order to study the impact of easy access to smart devices, the teacher sampling groups were divided into two: one teacher group responsible for smart classrooms and the other group teaching in ordinary classrooms. Survey questions dealt with teacher needs analyses, their expectation of their students' attitude changes, their satisfaction and utilization levels of smart devices currently built in classrooms. The results showed us that teachers have vague expectation about the smart devices and want more highly applicable devices for instruction, improvement of their compatibility with other multimedia devices or applications as well as to improve the resolution of electronic boards. and basic functions of information search and videos that they use everyday.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.222-225
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• 2010

매년 국내 많은 기업 및 단체에서 정보시스템 관련 프로젝트를 수행하는데 막대한 비용을 지불하고 있으며, 2008 년 국내 소프트웨어 및 컴퓨터관련 서비스 생산액은 24 조 4 천억 원에 이르고 있다. 그 중 컴퓨터 관련 서비스(SI 및 SM 등) 비용이 약 20 조, 응용 SW 비용이 1 조 8 천억 원에 이르고 있으며, 많은 기업과 단체들이 필요에 의해 다양한 정보시스템을 도입하여 운영하고 있음에도 불구하고 그 성과에 대해서 만족하지 못하고, 또 다시 정보시스템을 도입하여 운영하는 등 많은 시행착오를 겪고 있다. 이것은 기업의 필요에 맞는 정보시스템을 계획하고 구축하는 것도 중요하지만 정보시스템의 활용수준을 평가하고 이슈 및 개선사항을 도출하여 잘 활용하는 것이 정보시스템 성공의 핵심적인 요소임을 간과하고 있기 때문이다. 본 연구의 목적은 현재 개발되어 운영중인 정보시스템의 응용 소프트웨어가 효율적으로 이용되는지에 대한 활용 수준 평가/진단을 위하여 정보시스템 활용도 평가에 대한 선행연구의 한계점을 살펴보고, 체계적이고 합리적인 응용 소프트웨어 활용도 평가 지표를 새롭게 제시하며, 국내 기업의 차세대 CRM 응용 소프트웨어 활용수준을 적용하고 평가하여 이슈 및 개선사항을 도출하는데 있다.