• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2004년도 품질경영모델을 통한 가치 창출
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• pp.255-260
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• 2004

IEC 60300 series, the international standards on dependability management system are newly developed and introduced rapidly worldwide. In order to meet this situation, it is necessary to apply them to the Korean industries effectively. This requires for us to prepare in advance for the introduction of the certification system of IEC 60300. It includes the establishment of the infrastructure such as documentation of Korean Standards, introduction of test equipments and test manuals, recognition of the certification body and training of specialists etc. This paper addresses the first step for the Introduction of IEC 60300. It includes the necessity of introduction of the system, general requirements and procedures for the certification of the industries, sampling methods design and establishment of the dependability assurance system of the materials.

• 대한안전경영과학회지
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• 제6권2호
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• pp.103-114
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• 2004

IEC 60300 series, the international standards on reliability management system are newly developed and introduced rapidly worldwide. In order to meet this fast-changing situation, it is necessary to apply them to the Korean industries effectively. It includes the establishment of the infrastructure such as documentation of Korean Standards, introduction of test equipments and test manuals, accreditation of the certification bodies and training of the specialists etc. IEC 60300 is upgraded management system of the ISO 9000 and ISO 14000. In this regard, the Korean companies which were certified with the ISO 9000 or 14000 should endeavor to find new strategies and methods to be certified with IEC 60300. This paper introduces a Quantitative method of estimating the level of the reliability management system by applying the MIR(Maturity Index on Reliability) technique. This enables the estimation of the operation level of the system and can upgrade the maturity level of it.

• Journal of Information Technology Applications and Management
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• 제12권3호
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• pp.97-109
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• 2005

The internet and wireless communication technologies are creating ubiquitous environments in which various services are expected anytime and anywhere. Many hardware facilities have been developed and system structures are suggested for mobile services to realize a ubiquitous computing environment with appropriate quality. But these applications are not designed in the consideration of the general capabilities to perform user's wireless and mobile communication/transaction. Consequently, different needs from users are not sufficiently satisfied yet. In this study, we suggest structure of the emerging network system for mobile commerce that provides users with seamless and ubiquitous environments using location information which exploit context-aware technology.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권4호
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• pp.1493-1515
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• 2015

A smart meter is one of the core components in Advanced Metering Infrastructure (AMI) that is responsible for providing effective control and monitor of electrical energy consumptions. The multifunction tasks that a smart meter carries out such as facilitating two-way communication between utility providers and consumers, managing metering data, delivering anomalies reports, analyzing fault and power quality, simply show that there are huge amount of data exchange in smart metering networks (SMNs). These data are prone to security threats due to high dependability of SMNs on Internet-based communication, which is highly insecure. Therefore, there is a need to identify all possible security threats over this network and propose suitable countermeasures for securing the communication between smart meters and utility provider office. This paper studies the architecture of the smart grid communication networks, focuses on smart metering networks and discusses how such networks can be vulnerable to security attacks. This paper also presents current mechanisms that have been used to secure the smart metering networks from specific type of attacks in SMNs. Moreover, we highlight several open issues related to the security and privacy of SMNs which we anticipate could serve as baseline for future research directions.

• Asian Journal for Public Opinion Research
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• 제3권3호
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• pp.131-144
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• 2016

One of the main indicators of the health status of a country is the Maternal Mortality Rate (MMR). In order to improve the MMR in Indonesia, the government has made a number of primary health centers (PHC) capable of providing basic obstetric and neonatal emergency care (PONED) services. The aim of this research is to learn how well PONED services have been implemented at the Baso PHC in Agam Regency as of 2015. We used a qualitative approach, with in-depth interviews and observations from June-August 2015. Ten respondents participated in the in-depth interviews, and observations were made about the infrastructure. The validity of the data is based on the standard of credibility, transferability, dependability, and confirmability of the content of the interviews. The analysis shows that there are still some obstacles in PONED PHC implementation, including the lack of human resources at the PHC and insufficient facilities, funding, and oversight, which causes many cases that should be handled by a PONED team to be referred to the hospital. Suggestions are provided to help improve policies and ultimately patient care.

• 정보보호학회논문지
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• 제25권2호
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• pp.439-448
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• 2015

사물인터넷은 모든 고유 식별 가능한 임베디드 컴퓨팅 장치가 기존의 인터넷 환경에 연결된 초연결 사회를 지향한다. 따라서 사물인터넷 서비스는 단순한 사물간의 통신(M2M)을 넘어 많은 프로토콜들, 도메인들, 애플리케이션들 위에서 유연한 통신 능력을 가지고 사용자에게 권한을 부여할 수 있어야한다. 또한, 사물인터넷의 접근제어는 보안과 신뢰성을 증가하기 위하여 전통적인 접근제어와 차별화된 방법이 필요하다. 본 논문에서는 사물인터넷 환경에서 안전한 접근제어를 위하여 capability 토큰 기반의 시스템을 설계하고 구현하였다. 제안한 시스템에서 capability 토큰은 인가권한을 의미하며, 토큰은 위임, 재위임, 폐기 가능하다. 제안된 시스템은 capability 토큰을 사용함으로써 접근 제어 처리 시간을 감소할 수 있을 것으로 기대한다.