• 한국컴퓨터정보학회논문지
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• 제21권8호
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• pp.49-55
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• 2016

In this study, we proposed the social map system prototype for intelligent crime prevention. For developing the social map system prototype, functional requirements were derived through the analysis of related cases and preceding studies. Derived requirements are providing a variety of map-based safety information, using crowdsourcing data such as SNS, connecting to intelligent CCTV. To satisfy these requirements, the prototype is developed with four main menus: the integrated search menu including social media data, the safety map menu providing a variety of safety and danger information, the community map menu to collect safety and danger information from users, and the CCTV menu providing the link to intelligent CCTV. The social map for intelligent crime prevention in this study is expected to greatly enhance the safety of local community with the provision of prompt response to risk information, safe route, etc. through actual service and user participation.

• ETRI Journal
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• 제37권5호
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• pp.833-844
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• 2015

Recently, new network systems have begun to emerge (for instance, 5G, IoT, and ICN) that require capabilities beyond that provided by existing IP networking. To fulfill the requirements, some new networking technologies are being proposed. The promising approach of the new networking technology is to try to overcome the architectural limitations of IP networking by adopting an identifier (ID)-based networking concept in which communication objects are identified independently from a specific location and mechanism. However, we note that existing ID-based networking proposals only partially meet the requirements of emerging and future networks. This paper proposes a new ID-based networking architecture and mechanisms, named IDNet, to meet all of the requirements of emerging and future networks. IDNet is designed with four major functional blocks-routing, forwarding, mapping system, and application interface. For the proof of concept, we develop numeric models for IDNet and implement a prototype of IDNet.

• 한국기록관리학회지
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• 제5권2호
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• pp.49-72
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• 2005

본 연구의 목적은 전자기록의 계층구조와 유형을 조사 분석하고, 전자기록의 각 계층 중 관리에 가장 기본이 되는 계층인 기록철(records folder)의 관리방안을 제시하는 것이다. 이를 위해 영국의 "전자기록관리시스템을 위한 기능요건"을 기준으로 전자기록의 계층모형 및 기록철 관리방안을 분석하였다. 또한 이 표준에서 제시한 전자기록의 계층구조를 가상의 사례에 적용해봄으로써 각 계층의 의미를 분명히 설명하고자 하였다. 이러한 선진사례 분석을 토대로, 우리나라 분류체계에서 전자기록철의 개념 도입 시 고려해야할 점, 전자기록철의 개시와 종결 기준 설정, 전자기록권(part) 개념의 도입 등을 중심으로 시사점을 정리하였다.

• 한국컴퓨터정보학회논문지
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• 제6권4호
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• pp.154-162
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• 2001

본 논문에서는 인터넷망에서 실시간 인터넷 서비스의 제공을 위해 라우터 시스템에 적용되는 다양한 스케줄링 알고리즘들을 분석하고 서비스 특성에 따라 지연 민감형 트래픽과 손실 민감형 트래픽의 QoS 요구사항을 보장할 수 있는 스케줄링 알고리즘을 제안한다. 이를 위하여, 먼저 ITU-T 권고안에 기초한 QoS 개념을 정의하고, 인터넷망에서의 패킷다중화기의 요구사항을 살펴보고 망에 적용하기 위해 고속의 패킷 포워딩 기능을 담당하는 패킷 다중화기의 기능 구조와, 입력 소스 트래픽의 QoS 등급에 기초하여 다양한 QoS를 만족시키기 위한 스케줄링 알고리즘을 설계한다. 마지막으로 모의 실험을 통해 패킷 손실율과 평균 지연 측면에서 알고리즘의 성능을 고찰한다.

• 정보보호학회논문지
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• 제14권3호
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• pp.85-100
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• 2004

모든 정보시스템은 보안기능이 강화된 정보보호시스템이라 할 수 있으며, 정보보호시스템의 품질을 높이기 위해서는 초기 요구사항 분석 단계에서 보안요구사항을 정형적이며 일관적으로 분석 및 명세하여야 한다. 본 논문에서는 UML의 Use Case 모델을 확장한 Misuse Case 모델을 이용하여 보안요구사항을 분석 및 명세하는 모델과 프로세스를 제시하였으며, 도출된 보안기능요구사항들을 제품화한 비용효과적인 보안제품 선정 알고리즘을 제시하였다. 제시한 모델 및 프로세스를 통해 개발된 정보보호시스템의 품질을 제고할 수 있을 것이다

• 한국IT서비스학회지
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• 제20권1호
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• pp.41-54
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• 2021

The SW-centered battlefield management information system R&D project takes a long period of 5-10 years or more by applying a complex and rigid batch acquisition strategy. In order to solve this problem, it is necessary to institutionalize a rapid and flexible battlefield management information system R&D project management procedure applying agile development methodology, and a government project management organization and contract management method to support it In this study, we analyzed the case of applying the Agile development method centered on Scrum to the US SW-centered weapon system R&D project and the characteristics and problems of the battlefield management information system R&D project in Korea, and suggested improvement measures as follows. First, the battlefield management information system R&D model applies the hybrid development method, and the system requirements analysis and system structure design use the existing waterfall development procedure, and the agile method is applied from the SW requirements analysis to the system integration stage. Second, flexible adjustment of performance, schedule, and cost by organizing an Agile IPT in which military (requirements) - DAPA (project management) - developer - functional specialized organizations (test and evaluation, quality, government research institutes, etc.) participate. Third, improving the Basic Order Agreement so that it can be applied to agile R&D.

• 대한안전경영과학회지
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• 제15권3호
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• pp.61-69
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• 2013

According to ISO 26262 (the international standard on functional safety for automotive industry), the functional safety should be considered during the whole automotive systems life cycle from the design phase throughout the production phase. In order to satisfy the standard, the automotive and related industry needs to take appropriate actions while carrying out a variety of development activities. This paper presents an approach to coping with the standard. Analyzing the standard indicates that the safety issues of the automotive systems should be handled with a system's view whereas the conventional approach to solving the issues has been practiced with focus on the component's level. The aforementioned system's view implies that the functional safety shall be incorporated in the system design from both the system's life-cycle view and the hierarchical view for the structure. In light of this, the systems engineering framework can be quite appropriate in the functional safety development and thus has been taken in this paper as a problem solving approach. Of various design issues, the analysis and verification of the safety requirements for functional safety is a key study subject of the paper. Note, in particular, that the conventional FMEA (failure mode effects analysis) and FTA (fault tree analysis) methods seem to be partly relying on the insufficient experience and knowledge of the engineers. To improve this, a systematic method is studied here and the result is applied in the design of an ABS braking system as a case study.

• 대한임베디드공학회논문지
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• 제16권6호
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• pp.267-276
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• 2021

The automotive industry and academic research have been continuously conducting research on standardization such as AUTOSAR (AUTomotive Open System ARchitecture) and ISO26262 to solve problems such as safety and efficiency caused by the complexity of electric/electronic architecture of automotive. AUTOSAR is an automotive standard software platform that has a layered structure independent of MCU (Micro Controller Unit) hardware, and improves product reliability through software modularity and reusability. And, ISO26262, an international standard for automotive functional safety and suggests a method to minimize errors in automotive ECU (Electronic Control Unit)s by defining the development process and results for the entire life cycle of automotive electrical/electronic systems. These design methods are variously applied in representative automotive safety-critical systems. However, since the functional and safety requirements are different according to the characteristics of the safety-critical system, it is essential to research the AUTOSAR functional safety design method specialized for each application domain. In this paper, a software functional safety mechanism design method using AUTOSAR is proposed, and a new failure management framework is proposed to ensure the high reliability of the product. The AUTOSAR functional safety mechanism consists of memory partitioning protection, timing monitoring protection, and end-to-end protection. The fault management framework is composed of several safety SWCs to maintain the minimum function and performance even if a fault occurs during the operation of a safety-critical system. Finally, the proposed method is applied to the Shift-by-Wire system design to prove the validity of the proposed method.

• 시스템엔지니어링학술지
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• 제6권2호
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• pp.29-35
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• 2010

In general, an Architecture of a system is embodied as applied results of a requirement analysis of a system in early development phase. These efforts play a important role in analyzing and understanding a system considering operational, functional, and physical view and deriving a correct solution before developing the system. In this paper, the architecture of the Tube Transportation System(TTS) known as the new transportation system in Railway Domain is depicted by performance parameter has already developed. The existing performance parameters are shown by a variety of types with many meanings rather than types of general requirements refined. As these early performance parameters have analyzed and complemented to a level of requirement by requirement managers and other domain specialists, the architecture of the Tube Transportation System was developed systematically and then system requirements will be drawn up definitely. The presented architecture will provide a framework of developing a TTS and also offer an information in performance analysis of TTS.

• 인터넷정보학회논문지
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• 제10권1호
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• pp.175-182
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• 2009

사용자 요구 분석에 있어 품질 요구에 대한 표현과 검증은 다른 활동에 비해 체계적인 연구가 미진한 분야로 알려져 왔다. 본 논문은 UML을 기반으로 정보시스템을 개발할 경우 적용이 가능한 품질 요소 중 사용성, 성능, 이해성 등에 대한 표현과 구현 추적 방법을 제안한다. 특히 유스케이스와 시퀀스 다이어그램의 품질 표현 확장을 통해 기능 요구의 구현 추적과 더불어 관계되는 품질 요구에 대한 표현과 추적을 할 수 있도록 한다. 이를 통해 개발자는 기능요구와 비기능 요구가 올바로 구현되었음을 사전에 확인할 수 있다.