• 디지털콘텐츠학회 논문지
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• 제2권1호
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• pp.31-40
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• 2001

현재 네트워크 관리를 위해서 SNMP(Simple Network Management Protocol), CMIP(Common Management Information Protocol), RMON(Remote network MONitoring) 등의 많은 표준안이 있다. 이것들 중 특히 RMON은 대규모 네트워크의 서브네트워크를 관리하기 위해서 개발되었지만, RMON 기능을 이용하기 위해서는 RMON 기능을 가진 허브나 라우터의 추가적인 장비도입이 필요고, 더욱이 이러한 장비의 가격이 고가이므로 네트워크 관리자에게는 관리비용의 부담이 크다는 단점이 있다. 본 논문에서는 PC 상에서 가상 장비 드라이버(VxD)를 이용하여 LAN 세그먼트의 교통량을 감시하는 PC 기반 RMON 에이전트 시스템을 제안한다. 이 시스템은 LAN 세그먼트 관리를 위한 새로운 장비의 도입이나 관리비용의 부담을 감소시킬 수 있다.

• 한국인터넷방송통신학회논문지
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• 제11권2호
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• pp.189-196
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• 2011

디지털 콘텐츠는 IT 산업의 핵심적인 콘텐츠로 인터넷의 발전과 더불어 다양한 분야에서 개발되고 있다. 사용자의 멀티미디어 장비가 다양해지고 성능이 향상되어 감에 따라 디지털 콘텐츠 보호는 더욱 복잡해지고 다양한 보호 시스템 개발을 요구한다. DRM(Digital Rghts Management)은 대표적인 콘텐츠 보호 시스템이며 이 기술 기반으로 다양한 콘텐츠 보호 기법이 등장하고 있다. 그러나 콘텐츠와 배포형태에 따른 다수의 기술을 적용해야하는 문제점과 "analog hole" 문제 및 키 분배 방식의 비효율성으로 인해 안전하게 보호하기 어렵다. 본 논문에서는 이러한 문제점을 해결하기 위해서 RFID(Radio Frequency Identification) 기술을 이용한 콘텐츠의 인증 및 보호 시스템 제안하고 스마트 홈 환경에서 자유로운 콘텐츠의 복제 및 효율적인 콘텐츠관리가 가능함을 보인다.

• 정보처리학회논문지C
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• 제11C권6호
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• pp.739-746
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• 2004

라이선스 메커니즘은 DRM(Digital Rights Management) 시스템의 핵심 요소 중의 하나이다. 라이선스 메커니즘은 DRM 시스템의 자원(resources), 자원의 사용 주체(principals), 자원에 대한 사용 규칙(usage rules) 등을 명확하게 식별하고 강제하기 위한 핵심적인 기능을 담당하도록 설계된다. 하지만 기존의 라이선스 메커니즘들은 가정이나 회사의 어떤 부서와 같은 그룹 내의 멤버들이 어떤 컨텐츠론 공유하고자 할 때 공유에 관련된 융통성이 부족하다. 본 논문은 그룹에 등록된 여러 명의 멤버들이 DRM 기술로 보호된 디지털 컨텐츠를 안전하고 융통성 있게 공유할 수 있도록 하는 새로운 라이선스 메커니즘을 제안한다. 본 논문이 제안하는 멤버/그룹 라이선스 메커니즘은 그룹 라이선스, 멤버 라이선스, 허가들(grants)간의 파생 관계 등의 개념들을 도입하여 기존의 라이선스 메커니즘을 확장한다.

• 디지털산업정보학회논문지
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• 제8권4호
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• pp.83-90
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• 2012

With the rapid growth of internet infrastructure, World Wide Web is evolving recently into various services such as cloud computing, social network services. It simply go beyond the sharing of information. It started to provide new services such as E-business, remote control or management, providing virtual services, and recently it is evolving into new services such as cloud computing and social network services. These kinds of communications through World Wide Web have been interested in and have developed user-centric customized services rather than providing provider-centric informations. In these environments, it is very important to check and analyze the user requests to a website. Especially, estimating user preferences is most important. For these reasons, analyzing web logs is being done, however, it has limitations that the most of data to analyze are based on page unit statistics. Therefore, it is not enough to evaluate user preferences only by statistics of specific page. Because recent main contents of web page design are being made of media files such as image files, and of dynamic pages utilizing the techniques of CSS, Div, iFrame etc. In this paper, large log analyzer was designed and executed to analyze web server log to estimate web contents preferences of users. With mapreduce which is based on Hadoop, large logs were analyzed and web contents preferences of media files such as image files, sounds and videos were estimated.

• 인터넷정보학회논문지
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• 제8권6호
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• pp.9-19
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• 2007

DRM 시스템의 재배포 서비스는 디지털 콘텐츠의 배포를 활성화시키는 중요한 요소이다. 그러나 기존 서비스는 재배포 범위를 소비자간으로 국한시키고 있다. 최근, 소비자 요구가 증가하면서 소비자는 자신의 여러 디바이스에서 콘텐츠를 실행하고자 한다. 본 논문에서는 소비자 소유의 디바이스간 재배포 서비스를 지원하는 라이센스 관리 기법을 제안한다. 제안된 기법에서는 소비자가 소유한 디바이스들의 식별 정보를 이용하여 디바이스 인증에 사용되는 도메인 키를 생성하고 라이센스에 저장한다. 디바이스에 변경이 생기면 도메인 키와 라이센스는 갱신된다. 이를 통하여 디바이스간 콘텐츠 배포가 안전하고 효율적으로 이루어 질 수 있도록 한다. 또한 제안된 라이센스 기법은 소비자간의 재배포 서비스에도 적용될 수 있음을 보인다.

• 한국간호교육학회지
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• 제10권1호
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• pp.64-74
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• 2004

This study was conducted to investigate what contents nurses want in the intensive major course of junior nursing college. Data were collected for four months from October 2002 to February 2003 by structured questionnaires. Subjects were 240 registered nurses in working at five hospitals and four public health centers and elementary or middle schools in the capital and its suburbs and country. The collected data were analyzed using SPSS 8.0 program. The results of this study were summarized as follows : 1. Nurses working at hospitals want the programs which involve the contents as follows : emergency nursing/CPR, infection control, critical care, caner pt. care, pain control, hospice, pulmonary disease pt. care, analysis of lab. exam, heart disease pt. care, chronic disease pt. care, DM pt. care, digestive-system disease pt. care, nervous-system disease pt. care, elderly pt. care, immune-system disease pt. care, endocrine-system disease pt. care. 2. Nurses working at public health centers want the programs which involve the contents as follows : home nursing, family nursing, management of DM, HT, degenerative disease, and chronic liver disease, elderly pt. care, health education, maternity nursing, rehabilitation nursing. 3. Nurses working at elementary or middle schools want the programs which involve the contents as follows : prevention of drug abuse or misuse, sex education and consultation, health education, consultation technique, emergency care, prevention of child obesity, prevention and management of adult disease in children, teaching method, method of school health room management.

• ETRI Journal
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• 제29권3호
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• pp.311-321
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• 2007

In this paper, we propose a user-centric conflict management method for media services which exploits personal companions for the harmonious detection and resolution of service conflicts. To detect conflicts based on the varying characteristics of individual users, the proposed method exploits the unified context describing all users attempting to access media services. It recommends and mediates users' preferred media contents through a shared screen and personal companions to resolve the detected conflicts. During the recommendation, a list of preferred media contents is displayed on the shared screen, and a personally preferred content list is shown on the user's personal companion comprising the selection of media contents. Mediation assists the selection of a consensual service by gathering the users' selections and highlighting the common media contents. In experiments carried out in a ubiHome, we observed that recommendations and mediation are useful in harmoniously resolving conflicts by encouraging user participation in conflict situations.

• 디지털산업정보학회논문지
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• 제5권2호
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• pp.177-184
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• 2009

The digital contents distribution system via network provides comfortability, usability, and diversified functions to content's users. However, for the characteristic of easy access of digital contents, the copyright infringements and indiscreet contents distribution are realized in this days. In other words, any users with the authentication key can access to copyright contents with any restrictions. To solve this problems, we proposed a user authentication mechanism which prevent indiscreet access to the digital content by using user system information. Also, to provide safe distribution of digital content, we used user's unique content authentication key.

• 경영과학
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• 제23권2호
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• pp.59-74
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• 2006

In this paper, we investigated economic viability of UCA (Ubiquitous Contents Access) technologies from user adoption perspective. UCA technologies are expected to 9et embedded into media and telecom merging services. Embracing new technologies such as UCA technologies, forged through an industry convergence, means opting for a technological innovation that will have technological as well as economic and strategic implications. As such, we adopted user perspective innovation adoption theories to explore key antecedents affecting consumer acceptance of these emerging technologies. Subsequently. using QFD (Quality Function Deployment) method, the impacts of UCA technical functions on user's perceived value enhancements are estimated. The QFD analysis result indicates that the new UCA service technologies could achieve about 42% enhancement on user perceived adoption intention compared to existing digital contents service technologies. The proposed analysis framework and findings suggests significant insights for further research.

• 한국경영과학회지
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• 제34권1호
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• pp.133-152
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• 2009

This paper analyze the fee structures of digital music contents and the revenue sharing ratios that are now on-going debates in Korean digital contents industry. Especially we consider Korean situation where copyrighters and telecom companies have conflict of interest. We found two major results. First, the choice between the flat rate scheme and the usage-based rate scheme is not important to telecom companies and copyrighters. The important thing is that copyrighters should decide the revenue sharing ratio and given that telecom companies should decide the retail price. Consequently, this way can lead to win-win solutions between them. Second, the flat rate scheme affects the relationship between consumers and telecom companies. Under the flat rate scheme, telecom companies have more benefits than consumers. In the vertical integrated structure, particularly, this tendency is more severe.