• 한국컴퓨터정보학회논문지
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• 제24권5호
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• pp.49-58
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• 2019

In this paper, we propose an edge cloud platform architecture for implementing smart factory. The edge cloud platform is one of edge computing architecture which is mainly focusing on the efficient computing between IoT devices and central cloud. So far, edge computing has put emphasis on reducing latency, bandwidth and computing cost in areas like smart homes and self-driving cars. On the other hand, in this paper, we suggest not only common functional architecture of edge system but also light weight cloud based architecture to apply to the specialized requirements of smart factory. Cloud based edge architecture has many advantages in terms of scalability and reliability of resources and operation of various independent edge functions compare to typical edge system architecture. To make sure the availability of edge cloud platform in smart factory, we also analyze requirements of smart factory edge. We redefine requirements from a 4M1E(man, machine, material, method, element) perspective which are essentially needed to be digitalized and intelligent for physical operation of smart factory. Based on these requirements, we suggest layered(IoT Gateway, Edge Cloud, Central Cloud) application and data architecture. we also propose edge cloud platform architecture using lightweight container virtualization technology. Finally, we validate its implementation effects with case study. we apply proposed edge cloud architecture to the real manufacturing process and compare to existing equipment engineering system. As a result, we prove that the response performance of the proposed approach was improved by 84 to 92% better than existing method.

• 기록학연구
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• 제38호
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• pp.3-35
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• 2013

실체가 있는 종이기록물은 물리적 접근이나 통제가 비교적 손쉽다. 그러나 전자기록의 경우 권한이 있다면 누구나 접근할 수 있는 활용적 측면이 강조되어 전자기록의 진본성과 무결성을 보장하기 위한 적절한 기준과 안정성이 중요하다. 본 연구는 표준기록관리시스템이 전자기록의 품질요건을 유지하는 데 중요한 역할을 하는 접근관리 기능에 대해 국내외 기능 요건서 및 표준에서 최소한의 필수항목을 추출하여 체크리스트를 작성하였다. 이 체크리스트를 바탕으로 표준기록관리시스템이 접근관리를 위한 기능을 제대로 구현하였는지 평가하고, 실제 기록관리업무에 어떻게 활용되고 있는지 사용현황을 알아보았다. 기록물관리 전문요원은 대체로 접근관리기능을 사용하지 않는데, 이는 기록관리시스템의 활용이 아직 많지 않아서 필요성을 느끼지 못했기 때문인 것으로 드러났다. 표준기록관리시스템이 보다 활성화된 시스템으로 거듭나기 위해서는 기능 통합 등 시스템적인 개선과 더불어 다음의 사항을 고려해야 한다. 첫째, 접근권한 설정에 대한 명확한 규정이 필요하다. 둘째, 문서보안 솔루션을 통해 수행하고 있는 접근 통제를 기록관리시스템에서도 구현할 수 있는 방안이 필요하다. 셋째, 기록관리시스템을 사용하는 기록물관리 전문요원이 지속적인 평가와 개선을 통해 시스템을 진화시켜야 한다. 넷째, 기록관리시스템의 기능개선을 위한 공론화의 장이 필요하다. 그동안 기록관리시스템에 대한 논의는 학계에서 공론화하여 논의를 하기 보다는 불평불만을 직설적으로 말함으로 협력을 통한 소통을 불가능하게 해왔다. 학계, 정부, 그리고 기록학을 공부하는 연구자 모두 서로 발전하는 방향으로 논의를 진행해야 한다.

• 한국산학기술학회논문지
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• 제9권5호
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• pp.1271-1278
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• 2008

워크플로우 관리시스템이 폭넓게 사용됨에 따라 조직간의 협업이 증가하고 있다. 워크플로우 시스템의 협업이 증가함에 따라 보안의 중요성이 강조되고 있다. 사용자 인증 워크플로우 시스템간의 안전한 통신 기능 등의 보안 기능은 인터넷상에서 워크플로우 관리시스템의 운영에 영향을 미치고 있지만, 워크플로우 시스템은 협업을 기반으로 보안 프로토콜이 제공되지 않은 실정이다. 따라서 본 논문은 워크플로우 관리시스템의 협업기반 보안 프로토콜을 제안한다. 협업 기반 보안 프로토콜의 제안을 위해서 본 논문은 워크플로우 관리시스템의 보안요구사항을 분석하고, 보안요구사항을 바탕으로 보안 아키텍쳐와 보안 프로토콜을 제시한다.

• 한국항공운항학회지
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• 제29권4호
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• pp.105-116
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• 2021

The importance of a systematic approach to collect, process, analyze, and share safety data in aviation safety management is continuously increasing. Accordingly, the domestic aviation industry has been making efforts to build a Big-data platform that can utilize multi-field safety data generated and managed by various stakeholders and to develop safety management technology based on them. Big data platforms not only must meet appropriate technical requirements, but also need to establish a management system for effective operation. The purpose of this study is to suggest the requirements of the aviation safety big data platform operation procedure and plan by reviewing the advanced overseas cases (FAA ASIAS). This study can provide overall framework and managerial direction for the operation of the aviation safety big data platform.

• 산업경영시스템학회지
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• 제37권2호
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• pp.43-54
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• 2014

Environmental pollution including air, land, and water has become one of the most critical issues in global interest. The damages due to environmental pollution lead to serious disasters. Nations have realized the importance of environment protection and have been starting to force organizations to implement environmental management system (EMS) as way of protecting environment. ISO 14001 requirements that are the most popular standard as EMS have been developed to support continuous improvement to environment management. It has been revised once since publication and ISO 14001 : 2004 version is currently available. Organizations globally started to acquire the certificate of EMS to observe environment related laws, accept customers' and stakeholders' request, increase market share, and fulfill implementation motives. This article examines the audit data that were collected for several years from manufacturing companies including shipbuilding, machinery, metal, automobiles, and chemical companies in southeastern Korea on the basis of ISO 14001 : 2004 requirements. The audit data were classified into minor nonconformities based on factors such as business size, business type, and EMS implementation period. We conduct hypotheses test using statistical methods in order to see if there are any significant differences based on the factors. We draw conclusions for the results of hypotheses test and address the necessities of energy, greenhouse gas, green management, and continuous improvement to enhance the efficiency of EMS implementation.

• 정보과학회 논문지
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• 제44권3호
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• pp.261-274
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• 2017

가변성 관리는 시스템이 어느 정도까지의 복잡성을 처리할 수 있는가를 정의하는 가장 중요한 기준이다. 대부분의 요구 공학 연구에서는 시스템이 동작하는 환경에 대해 많은 부분을 간과하거나 추측하는 수준에 그치고 있다. 그러나 실시간 시스템에서는 본질적으로 변화하는 컨텍스트를 관찰하고 조정하는 것은 중요한 요소이다. 본 연구에서는 i* 목표 모델, 문제 프레임, 유즈 케이스 맵, 라이브 시퀀스 차트를 활용하여 다양한 컨텍스트에 적합한 요구사항을 식별할 수 있는 프레임워크를 제안하며 스마트 그리드의 실시간 가격 정책 변화 시스템을 사례 연구로 활용하여 제안하는 프레임워크를 단계별로 자세하게 설명한다. 사례 연구를 통해 제안방법에서 유즈 케이스 맵과 라이브 시퀀스 차트를 활용한 시나리오 정교화 과정이 초기 컨텍스트 분석 및 검증에 도움을 주는 것을 보여주며 장애물 및 충돌 분석을 위한 요구사항을 정교화함으로써 요구공학 엔지니어들이 시스템의 건장성을 증가시키는 것을 도와줄 수 있음을 증명한다. 이처럼 제안하는 프레임워크는 이론적인 방법과 실증적인 사례를 통해 평가된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.2034-2039
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• 2010

As a mass transportation system, a railway contains potential risks that may result in a high death rate and property losses. Accordingly, Railroad Safety Technology R&D Corps. is adopting the plan of the construction of Railway Safety Test Facilities as a part of the Railway Total Safety Project to enhance the railway safety, and carrying out researches on effective project management methods with Systems Engineering techniques. When a system or a service is realized, such as the Railway Total Safety Project, it needs to be verified by requirements and the process of verification is to check whether customers/stakeholders requirements have been properly transformed into a system or a service. Recently, building the standardized verification system up could be the solution to reduce possible system-failed risks. To support that, we propose the more effectual verification method of constructing the Railway Safety Test Facilities applying the systems engineering tool to the research.

• 품질경영학회지
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• 제32권3호
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• pp.126-140
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• 2004

The AS 9100 aerospace standard has become the aerospace quality management system standard agreed to, instead of ISO 9001 and MIL-Q-9858A by international aerospace manufacturing companies. In this paper correlative requirements of each of the standards are compared and analyzed. Then the evolutionary concept and its direction is proposed as a guide to participate in the preparation and establishment of current aerospace quality management systems. This study is applicable to the future as well as present aerospace manufacturing activities throughout the world.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2006년도 춘계공동학술대회
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• pp.437-445
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• 2006

ISO 9000 is a management standard that provides customers with assurance thu their registered suppliers have a consistent quality system to which they adhere. this paper draws on four sources to show how ISO 9000 can lead to performance improvement. 1)theories of induces innovation and improvisation 2) the literature on ISO 9000 3) a case study of a telecom company. we find that the extent to which ISO 9000 is associated with performance improvement depends on the level of its assimilation, and the degree to which an organization goes beyond the minimal requirements of the standard.

• 경영과학
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• 제17권1호
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• pp.145-158
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• 2000

The medical records of diagnostic and testing information include sensitive personal information that reveals some of the most intimate aspects of an individual's life. The hospital information system (HIS) operates in a state of high risk which may lead to the possible loss to the IS resources caused by various threats. This research addresses twofold : (1) to perform asset identification ad valuation and (2) to recommend countermeasures for secure HIS network using case studies This paper applied a risk management tool CRAMM (Central Computer and Tele-communications Agency's Risk Analysis and Management Method) to assess asset values and suggest countermeasures for the security of computerized medical information of two large hospitals in Korea. CRAMM countermeasures are recommended at the reference sites from the network security requirements of system utilized for the diagnosis and treatment of patients. The results of the study will enhance the awareness of IS risk management by IS managers.