• The Magazine of the IEIE
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• v.42 no.3
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• pp.65-70
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• 2015

최근 유무선 데이터 트래픽 증가에 따른 추가 설비 비용 등의 증대는 수익성이 정체된 통신 산업체에 부담을 가중시키고 있다. 폭증하는 신규 서비스 대응과 산업체의 수익성을 동시에 확보하기 위해서 기존 망자원의 효율화 증대 및 고성능화하기 위한 방안으로 Optical SDN 시스템 및 부품 기술경쟁이 심화되고 있다. 본고에서는 이러한 요구 사항을 해결하고 국내 광네트워크 산업의 재도약을 위한 광부품 기술개발로써, 미래부 주관 차세 대통신 네트워크 산업 원천기술개발 사업인 'Optical SDN 구현을 위한 Metro용 Port-agnostic 광송수신 기술 개발'에 대한 기술을 소개하고 과제의 주요 연구 목표 및 내용인 100G coherent 광송수신 기술, 핵심 요소 부품기술에 대하여 소개함으로써, 향후 과제에서 개발 진행 중인 기술과 연계된 국내 광부품 산업체들이 고려해야할 주요 글로벌 기술 이슈 사항들과 본 과제에서 중점적으로 수행중인 내용을 간략히 소개하고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.151-153
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• 2001

Residential Gateway는 홈 네트워크를 구성할 경우 홈에서의 각종 통신망에 연결되어 있는 정보가전 기기를 제어하고, 기기들간 정보를 공유할 수 있게 하고, 댁내 정보가전기기가 외부 인터넷과 통신할 수 있는 Gateway의 역할을 수행한다. 또한 사용자가 정보 가전기기들을 손쉽게 사용하고 제어할 수 있는 서비스를 제공한다. 이러한 기능을 사용자에게 제공하고 다양한 응용들을 운용하기 위해 Residential Gateway는 댁내 하위 네트워크에 사용되는 다양한 통신규약을 위한 인터페이스를 제공해야 되고, 사용자에게 다양한 응용을 제공하기 위해 높은 성능을 가져야 함으로써 이에 따른 제약 즉, 전력소모, 열 발생, 소음 등의 문제점이 야기된다. 따라서 본 논문에서는 RG 하드웨어 설계 및 개발에 있어서 고려해야 할 사항에 대해 분석하였다.

• Journal of dental hygiene science
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• v.8 no.2
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• pp.51-56
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• 2008

This research surveyed, from 17 March 2008 to 25 March 2008, 261 students, 1,2,3 grade, who study in the a dental laboratory technology of college placed in Suwon. We sent them out each three questionnaire and surveyed their family and friends including themselves. We got back 584 paper out of 783 paper which we sent out and used as data of analysis. When choosing a dental clinic, we used a Pearson Correlation to understand a relation of variables connected with a medical service. The result showed that every each fields have a positive correlation and especially a correlation between a physical environment and an ability of dentist is showed most highly and a correlation between a basic element of clinic and a traffic convenience is showed a meaningful positive in that order.

• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.77-84
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• 2011

Following the increase in the supply of smartphones and the increase in the use of wireless Internet, the online shopping environment is also changing into mobile shopping. However, the domestic mobile shopping services fall short of people's expectations compared to desktop Internet shopping malls. These are mainly due to the restricted screen size and inconvenient data entry of mobile devices, the slow Internet speed, and other restrictive conditions. Accordingly, in this paper, the usability of three main domestic mobile shopping malls was evaluated using a heuristic evaluation method. The factors that must be considered when producing a mobile website, the consideration for the mobile users, and the main functions of a shopping mall, were considered to define an evaluation form. The results of the evaluation were then analyzed to propose the problems of mobile shopping malls and the directions for their improvement.

• Journal of Information Management
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• v.35 no.2
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• pp.87-105
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• 2004

In the print information world, purchasing books in a library includes rights both to own them and to access to them. In an information world, access to electronic resources often takes place within the confines of a license that defines appropriate use over a specified period of time. Most of these electronic resources are governed by license agreements. This paper describes recent licensing issues which remain unresolved in the area of business model, archive, and fair use and also investigates formal evaluation criteria for developing electronic resources in a library. This study provides licensing principles and considerations for managing the licensing of electronic resources.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.497-508
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• 2021

After the spread of COVID-19, the OTT market has grown rapidly. Accordingly, competition of OTT platforms has intensified. Among them, TVing provides users distinct characteristics of service, such as media and commerce, to differentiate it from other platforms. It is important to offer appropriate usability when proving combined service in one mobile application. Otherwise, it can adversely affect the user experience. In this regard, this research conducted usability testing of TVing and found out what user experience should be considered when integrating different characteristics of service in one mobile application. Through the usability testing, we measured and analyzed effectiveness, efficiency, and satisfaction based on the ISO usability testing guidelines. As a result, three important considerations of UX design for mobile application of combined services were found; 1) connectivity between services, 2) easy navigation, 3) consistent UI design, and 4) relations between subjects and provided information. This design consideration is expected to be applicable not only to TVing mobile application, but also to the situation where composed services are provided in one application.

• The Journal of the Korea Contents Association
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• v.14 no.1
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• pp.364-373
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• 2014

The relationship between a service provided via the information system and user satisfaction has been thought of as an important factor for the development of a new service for the information system. In this study, the twelve new key services that are applicable to national R&D report system were derived by web environment changes in step with IT technology developments in order to support the new service for the user. The twelve new key services are as follows; semantic search service for national R&D report, associated report service, RSS service, mesh-up service, topic-map service, open API service, personalized service, collective intelligence service, SNS service, unstructured data service, detailed search service, mailing service. To assess the quality attribute of the twelve new key services in the national R&D report system, a survey was performed. In conclusion, a stepwise service plan for the national R&D report system was proposed which would use the satisfaction coefficient and the results of the service classification. The following step-by-step service should be developed by in this way. The unstructured data service, personalized service, associated report service, topic-map service, open API service, and the collective intelligence service are needed to develop the first step and RSS service, mesh-up service, semantic search service for the national R&D report, mailing service, detailed search service, and SNS service are needed to develop the second step.

• Journal of KIISE:Software and Applications
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• v.37 no.11
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• pp.812-825
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• 2010

Service-Oriented Computing (SOC) is a reuse paradigm for developing business processes by dynamic service composition. Service consumers subscribe services deployed by service providers only through service interfaces. Therefore, services on server-side are perceived as black box to service consumers. Due to this nature of services, service consumers have limited knowledge on the quality of services. This limits utilizing of services in critical domains hard. Therefore, there is an increasing demand for effective methods for monitoring services. Current monitoring techniques generally depend on specific vendor's middleware without direct access to services due to the technical hardship of monitoring. However, these approaches have limitations including low data comprehensibility and data accuracy. And, this results in a demand for effective service monitoring framework. In this paper, we propose a framework for efficiently monitoring services. We first define requirements for designing monitoring framework. Based on the requirements, we propose architecture for monitoring framework and define generic patterns for efficiently acquiring monitored data from services. We present the detailed design of monitoring framework and its implementation. We finally implement a prototype of the monitor, and present the functionality of the framework as well as the results of experiments to verify efficiency of patterns for transmitting monitoring data.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.51-59
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• 2011

Intelligent service robots leading the future market are robots which assist humans physically, mentally, and emotionally. Since intelligent service robots operate in a tightly coupled manner with humans, their safe operation should be an inevitable consideration. For this safety, real-time capabilities are necessary to execute certain services periodically. Currently, most robot components are being developed based on Windows for the sake of development convenience. However, since Windows does not support real-time, there is no option but to use expensive third-party software such as RTX and INTime. Also since most robot components are usually execute in user-level, we need to research how to support real-time in user-level. In this paper, we design and implement how to support real-time for components running in user-level on Windows using RTiK which actually supports real-time in kernel level on Windows.

• Journal of Korean Library and Information Science Society
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• v.43 no.1
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• pp.321-347
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• 2012

Recently, the expansion of smart phones, wi-fi. and unlimited service changed our life style from personal computer based to mobile device based. With this trend, a lot of companies and government facilities use QR code as an advertising material, and now the QR code is very popular service in our ordinary life. In the meantime, libraries in abroad and university libraries started using QR code in library service about 2 or 3 years ago, and domestic libraries started using it in service due to the increase of establishment of mobile Library websites. In this research, starting with looking into the literature, I analyzed the examples of the use of QR code in libraries. On the base of it, I drew a QR code library service model, and what needs to be considered for the use of it.