• Journal of Communications and Networks
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• 제15권5호
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• pp.464-468
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• 2013

The widespread use of cryptographic technologies is complicated by inconsistencies and duplication in the key management systems supporting their applications. The proliferation of key management systems or protocols also results in higher operational and infrastructure costs, and fails in interoperability. Thus, it is essential to realize key management interoperability between different and heterogeneous cryptosystems. This paper presents a practical and separable key management system for heterogeneous public-key cryptosystems. We achieve the interoperability between different cryptosystems via cryptography approaches rather than communication protocols. With our scheme, each client can freely use any kind of cryptosystemthat it likes. The proposed scheme has two advantages over the key management interoperability protocol introduced by the organization for the advancement of structured information standards. One is that all the related operations do not involve the communication protocol and thus no special restrictions are taken on the client devices. The other is that the proposed scheme does not suffer from single-point fault and bottleneck problems.

• 한국IT서비스학회지
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• 제11권4호
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• pp.181-194
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• 2012

The one of the most meaningful change in the recent ubiquitous environment is the omnipresence of public digital display device for providing ubiquitous information. It is the important issue to provide publicity as well as adaptive information to each user in the field of the public digital display device. This research proposes the idea ensuring fast response speed by the selection of user preference function. The preference function is selected by statistics using Zipf distribution in the system comprising mobile device and digital display device based on NFC (Near Field Communication). The idea is proved by CPM-GOMS model and the improvement of user response can be achieved.

• 보건교육건강증진학회지
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• 제24권2호
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• pp.111-121
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• 2007

The purpose of this study is to examine the status quo of the networking between health promotion and other programs conducted by public health centers(PHCs), and to develop concrete strategies for improving the efficiency of the health promotion programs at PHCs. Data were collected from a questionnaire survey for 246 PHCs nationwide and 96 questionnaire were returned(response rate of 39%). A focus group study was also conducted to compliment the detail of the networking system between health promotion and other programs at PHCs. The results revealed that the current networking between health promotion and other programs conducted by public health centers is not working well. Especially, the communication networking between health promotion and other programs at planning stage is poorer than the stages of implementation, performance, and evaluation. The main reasons of the poor networking have been caused by an inadequate organizational structure, inefficient information system, low level of motivation for networking among the staff of PHCs, and no concrete guidelines for networking. This study also suggested several strategies to facilitate the cooperation between health promotion and other programs.

• 융합경영연구
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• 제3권1호
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• pp.33-39
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• 2015

Managers are always trying to be the best internal controls in their organizations copper approximate because they know that be effective internal control over previous systems, to fulfill the mission of the organization and minimize unexpected events will be extremely difficult. On the other hand, the existence of internal controls to increase efficiency, reduce head loss, assets and achieving a reasonable assurance of the reliability of financial statements and compliance with laws and regulations will be. Internal control, not an event, but a series of operations and activities on the basis of output. Internal controls help to achieve the goal of minimizing the problems of implementing appropriate internal controls. Internal control is an integral component of corporate governance that will provide reasonable assurance of achieving the organization's objectives. preventing, detecting errors and fraud goes to work. Responsibility for the prevention and detection of fraud and error in the public sector is the responsibility of managers. Managers of internal control and consistently applying appropriate accounting systems, this responsibility will play (Lin et al., 2011). Since the public sector organizations differ from each other, thus establishing internal controls cant be the same for all organizations and agencies of the public sector. Establish specific controls on each system to factors such as size, type of operation and organizational goals that the system is designed, it depends. On the other hand, rapid advances in information technology, the need to update internal control guidelines in relation to Create a new computer system so as to ensure that the activities of managers and effective control Should be updated if necessary.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.235-248
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• 2024

The performance of informatization differs depending on its utilization, investment and construction methods. This study analyzed the key factors affecting the performance of informatization based on a public survey on the information system operation of small and medium-sized companies in Korea. Through structural equation modeling and one-way ANOVA, the study identified the pathways leading to performance. As a result of the analysis, it was confirmed that higher levels of top management support are associated with increased information system use and performance. Similarly, higher levels of information system use are correlated with better performance of information systems. This research is significant as it investigates and reveals how top management support and information system usage work in the cases of SMEs in South Korea, which is a leading country in manufacturing. The findings of this study will provide valuable insights for SMEs, whether they have already developed an information system or plan to do so, in their efforts to enhance corporate competitiveness.

• 디지털콘텐츠학회 논문지
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• 제19권6호
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• pp.1069-1079
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• 2018

미디어 거버넌스론을 바탕으로 KBS 제도에 영향을 미치는 요인과 지배구조 개선에 대한 인식을 분석하고, 지배구조 개선방안을 제시하였다. 연구결과는 다음과 같다. 첫째, KBS 제도에 영향을 미치는 요인은 정치, 다음으로 공영방송 자신 즉 전문직주의 역할로 나타났다. 정치적 요인이 공영방송 KBS 제도에 가장 영향을 주는 요인으로 확인되었다. 둘째, KBS 지배구조는 BBC와 같이 정치 독립적인 전문모델을 지향하면서, 이사회 구성과 비율은 정치권 이외의 다양한 이해 세력이 참여하는 독일식 조합 모델을 선호하였다. 셋째, 미래 지향적 KBS 지배구조 모델은 정치와 시장의 영향력으로부터 벗어난 시민사회(공공) 영역의 변화를 필요로 한다. 결국 공영방송 KBS 제도가 안정적으로 작동하기 위해서는 정치적 영향이 축소되어야 하고, 공공영역(시민사회)의 성장으로 정치와 시장을 견제하는 역할이 필요하다는 것이다.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.330-335
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• 2001

The occurrences of occupational illness and injury have been seriously underestimated in Korea. Surveillance systems for occupational diseases have recently emerged as important strategies for the control of occupational hazards and the implementation of intervention programs to protect workers. However, health service providers do not actively diagnose occupational diseases and are unwilling to report occupational diseases. With the rapid growth of Internet usage in Korea, the computer network has become the predominant means of communicating and sharing information. Therefore, we developed a web-based updated information and education network to assist the health services providers in reporting occupational diseases. Information systems for occupational disease surveillance were also designed to support occupational disease reporting. Commonly available database systems, such as web databases, are useful to manage occupational diseases data efficiently. Standardized case definitions and report guidelines were also established, which included cumulative trauma disorder, occupational asthma, occupational contact dermatitis, and occupational cancer. This system may provide the basis of an efficient and continuously updated source of educational information and provide specific information concerning the occurrence of occupational diseases in specific areas. Background information on occupational diseases obtained in this way will be invaluable for preventing hazards and enforcing occupational disease prevention programs. Moreover, our experiences in establishing these information systems will be of great use in other countries and settings.

• 인터넷정보학회논문지
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• 제7권3호
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• pp.83-91
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• 2006

본 논문에서는 인증서를 사용하는 모든 암호시스템 분야에 응용될 수 있는 인증 및 키 복원 프로토콜로 PKINIT를 응용한 안전한 초기인증 공개키 암호시스템 모델을 연구하였다. 멤버들에 대한 인증은 서버와 사용자간에 인증서를 기반으로 공개 키 암호에 의한 초기인증과 세션 키 분배, 응용자원 서버들과의 비밀통신에서 키의 유실을 고려한 키 복구지원 프로토콜을 제안하였다.

• 한국산학기술학회논문지
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• 제13권4호
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• pp.1857-1862
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• 2012

소규모 도시에서는 지하철과 같은 대규모의 구축비용과 운용비용이 필요한 저공해 대중교통 시스템을 구축하기가 어렵다. 본 연구에서는 환경개선 및 자원의 효율적인 사용이 가능한 전기자동차 세어링 서비스 프레임 워크를 기반으로 하는 소규모도시를 위한 대중교통 시스템을 제시한다. 제시한 시스템의 대중교통 수단으로의 유효성을 시뮬레이션 하였으며, 세어링 시스템을 도입하는 경우 출퇴근 시간대의 혼잡도가 줄어드는 것을 알 수 있었다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.47-47
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• 2000

Most measuring devices are equipped with RS-232 or GPIB interface for communicating data with computers. If the measuring devices can be accessed by a server computer, the valuable information from the devices can be effectively shared with other computers via internet. But, if the measuring devices and the server computer are too far away, it is difficulty to directly connect them by RS232 interface. PSTN(Public Switched Telephone Network) refers to the world's collection of interconnected voice-oriented public telephone networks. Measuring computer system which is equipped with RS232 interface and modem for PSTN can be introduced to overcome the aforementioned distance problem, In this work, an internet based remote monitoring system which utilizes PSTN and VRML for 3-dimensional GUI is proposed.