• Spatial Information Research
• /
• v.15 no.3
• /
• pp.347-362
• /
• 2007

GIS has been rapidly developed since 1995 when the Ministry of Construction and Transportation started the First National GIS Construction Project and built large scale topographic map at local governments level. From that time local governments have been built several application system such as road management system, waterworks management system, sewer management system, underground facilities management system, and urban planning information system, etc. However, the construction of GIS application system at different department level brings the problem of data sharing and overlapping database construction. To overcome this environment Enterprise GIS concepts has been introduced. In case of Seoul Metropolitan government Spatial Data Warehouse have been constructed. However, Seoul Metropolitan government still have the problem of inactive use of GIS system and adaption to the rapidly changing information environment. This study aims to present Strategic plan to uggrade Enterprise GIS concenpt from data centric to service centric architecture at local government level.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.12 no.10
• /
• pp.1866-1874
• /
• 2008

Existing web server lowers the whole capacity of system because of the problem on the processing load of server by closing connection increasing code handshake operation, and remarkable decrease of server capacity if it is the state of overload. Also, there occurs disadvantages of increasing connection tine about client's request and response time because handling of client's multi-requests is not smooth because of thread block and it requests a lot of time and resources for revitalization of thread. Therefore, this paper proposes the extended web server which provides the technique for delay handling and improves the overload of server for better system capacity, communication support, and the unification which is the advantage of web service. And it evaluates the existing system(implemented at Tomcat 5.5) and the proposed mobile web server architecture. The extended server architecture provides excellent exchange condition for system capacity and evaluates improved web server architecture which combines multi-thread with thread pool. The proposed web service architecture in this paper got the better result of improved capacity benefit than the evaluation result of original Tomcat 5.5.

• Journal of Korea Spatial Information System Society
• /
• v.7 no.1 s.13
• /
• pp.53-62
• /
• 2005

A challenging task in the LBS system engineering is to implement a highly scalable system architecture which can manage moderate-size configurations handling thousands of moving items as well as upper-end configurations handling distributed computing system architecture that consists of multiple data processors, each dedicated to keeping records relevant to a different geographical zone and a different time zone. In this paper, we explain a prototype location data server structuring major components of GALIS by employing the TMO programming scheme, including the execution engine middleware developed to support real-time distributed object programming and real-time distributed computing system design. We present how to generate realistic location sensing reports and how to process such location reports and location-related queries. Some experimental results showing performance factors regarding distributed query processing are also explained.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2018.11a
• /
• pp.364-365
• /
• 2018

선박의 안전운항을 위해 해양기상 및 수로환경정보는 필수정보로서 현재 Weather Fax나 수로서지를 통해 정보를 활용하고 있다. e-Navigation 전략이행계획에는 해사서비스목록(MSP)을 정의 하였으며, 해양기상 및 수로환경정보를 전자 데이터로 서비스 하기 위해 서비스 개념과 기술 사양을 개발 중이다. 한국형 e-Navigation 서비스 개발 연구에서는 기상청과 국립해양조사원에서 생산하는 데이터를 이용하고 S-100 기반의 국제표준에 따른 데이터 서비스 기술을 개발하고 있다. 본 연구에서는 한국형 e-Navigation 서비스 아키텍처와 개발 기술을 기반으로 해양기상 및 수로환경정보 서비스 운영 개념을 설계 하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2007.06a
• /
• pp.852-855
• /
• 2007

1990년대 인터넷의 폭발적인 확장은 인터넷의 심각한 scalability 문제를 야기 시켰다. 특히 BGP 테이블의 기하급수적인 성장세를 보였고, 이러한 확정성을 해결하기 위해 새로운 IP 프로토콜인 IP version 6(IPv6)를 표준화하였다. 그러나 IPv6는 실질적으로 인터넷의 scalability를 충분히 해결하지 못했으며, 특히 멀티호밍, Traffic Engineering, PI (Provider Independent) routing 정책들로 인해 다시 한 번 scalability 문제는 크게 이슈화 되었다. 따라서 현재 인터넷의 표준을 제정하는 IETF에서는 장기적인 안목으로 인터넷 아키텍처의 변경을 통해 자연스럽게 해결하려 하고 있다. 현재 인터넷 아키텍처가 가지고 있는 가장 큰 문제는 routing과 addressing의 핵심으로 사용되는 IP 주소의 의미의 중복 (overloading semantics)이며, 라우팅을 위한 정보 (how), 단말의 위치 정보(where), 그리고 이 외에 전송 계층 상위에서 사용되는 단말의 식별자 정보(who)로 사용되는 IP 주소의 의미 중복을 해결하면, 자연스럽게 scalability 문제를 해결함과 동시에 멀티호밍, Traffic engineering, renumbering, 그리고 이동성 지원 등을 지원할 수 있게 되는 것이다. 본 논문은 이와 같이 현재 인터넷이 가지고 있는 확장성 문제를 살펴보고, 이를 해결하기 위해 제시된 IP 주소에서 Identifier와 locator를 분리하는 기술들을 분석한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2012.10a
• /
• pp.374-377
• /
• 2012

GNSS(Global Navigation Satellite System) based land transportation infrastructure system is consists of receiving station and central station. The functions of the central system include receiving station's data gathering and decoding, carrier correction and integrity information generated, transmission of data in real-time. In general, The central station architecture should take into account various important points relating to hardware/software of system, data archiving and checking, availability and continuity of operation, etc. There is a fundamental need for a generic design capable of being used in any situation. Also, There is need to develop an expandable and interoperable central station architecture. In this paper, the process of design and manufacture and verification will be introduced.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.11c
• /
• pp.1587-1590
• /
• 2003

웹 정보시스템 개발에 있어 사용자 요구사항이 복잡하고 다양해짐에 따라 웹 정보시스템 개발에 SE 기술을 접목하는 연구가 시도되고 있다. 그러나 아직 웹 기반 소프트웨어공학을 대학의 교육과정에 도입하는 경우는 없다. 본 논문에서는 웹 정보시스템의 개발 및 운영에 대한 핵심 소프트웨어공학 기법을 교육함에 있어서 중요하고 시급한 주제, 네 가지를 제안하려 한다. 첫 번째는 웹 기술과 컴포넌트 기술을 적용한 소프트웨어 아키텍처이고, 두 번째는 웹 효과적인 웹 응용 개발을 위한 디자인 패턴이며, 세 번째는 웹기반 SW 테스팅의 계획수립 및 테스트 수행 기법이고 마지막으로 웹서비스 기술과 적용 사례가 교육되어야 할 것으로 보인다.

• Journal of the Korea Society of Computer and Information
• /
• v.25 no.11
• /
• pp.123-129
• /
• 2020

Recently, cybercrime has become increasingly difficult to track by applying new technologies such as virtualization technology and distribution tracking avoidance. etc. Therefore, there is a limit to the technology of tracking distributors based on malicious code information through static and dynamic analysis methods. In addition, in the field of cyber investigation, it is more important to track down malicious code distributors than to analyze malicious codes themselves. Accordingly, in this paper, we propose a next-generation malicious code information collection architecture to efficiently track down malicious code distributors by converging traditional analysis methods and recent information collection methods such as OSINT and Intelligence. The architecture we propose in this paper is based on the differences between the existing malicious code analysis system and the investigation point's analysis system, which relates the necessary elemental technologies from the perspective of cybercrime. Thus, the proposed architecture could be a key approach to tracking distributors in cyber criminal investigations.

• 한국경영정보학회:학술대회논문집
• /
• 2007.06a
• /
• pp.966-969
• /
• 2007

인터넷은 개인과 조직간의 정보를 원활하게 유통시키는 역할을 하고 있지만, 개인정보를 노출시키는 부작용을 낳고 있다. 특히 개인정보의 가치가 중요시되고 있는 상황에서 개인정보를 보호할 수 있는 보호정책이 필요하다. 본 연구는 개인정보의 수집, 저장, 이용, 파기와 같은 수명주기에 따른 개인정보 관리모델을 제시하고자 한다. 개인정보 관리모델은 각 개인정보 수명주기에 따라 개인정보 관리자가 수립해야 할 개인정보보호정책, 개인정보보호를 위한 기술적 대책, 기술적 대책 및 프로세스를 관리할 수 있는 관리적 대책을 서술한다. 본 연구는 제안된 개인정보 관리모델을 구현할 수 있는 개념적인 아키텍처를 제시한다. 본 연구는 개인정보의 수명주기에 따른 개인정보보호를 위해서 필요한 개인정보정책, 기술적인 대책, 관리적인 대책을 제시했다는 데 의의가 있다.

• The KIPS Transactions:PartD
• /
• v.14D no.1 s.111
• /
• pp.121-130
• /
• 2007

in a software development, the design or architecture prior to implementing the software is essential for the success. This paper presents a case that we successfully designed a software architecture of radiation monitoring system (RMS) for HANARO research reactor currently operating in KAERI by applying the quality attribute-driven design method which is modified from the attribute-driven design (ADD) introduced by Bass[1]. The quality attribute-driven design method consists of following procedures: eliciting functionality and quality requirements of system as architecture drivers, selecting tactics to satisfy the drivers, determining architectures based on the tactics, and implementing and validating the architectures. The availability, maintainability, and interchangeability were elicited as duality requirements, hot-standby dual servers and weak-coupled modulization were selected as tactics, and client-server structure and object-oriented data processing structure were determined at architectures for the RMS. The architecture was implemented using Adroit which is a commercial off-the-shelf software tool and was validated based on performing the function-oriented testing. We found that the design method in this paper is an efficient method for a project which has constraints such as low budget and short period of development time. The architecture will be reused for the development of other RMS in KAERI. Further works are necessary to quantitatively evaluate the architecture.