• The KIPS Transactions:PartD
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• v.11D no.1
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• pp.51-60
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• 2004

In open GIS environment, a GIS client can access spatial data in different types of GIS sowers with the same Interfaces. This means that open GIS components software ensures the interoperability throughout the heterogeneous GIS servers. The user response time, however, tends to be increased, if the client makes use of the standard interfaces for data accesses that can ensure interoperability. This is because the format of spatial data accessed from a specific GIS server must be transformed into common format, such as Rowset in OLE/DB, which is compatible with the standard interfaces. In this paper, we develop efficient techniques for data buffering in GIS client to reduce the response time. We design the buffer management method, which Is based on the space partitioning, and Integrate buffer management components into MapBase, an open GIS component software. And we also, show that buffer management proposed in this paper yields significant performance improvement in GIS client.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.10
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• pp.1179-1187
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• 2019

In today's technology environment, most big data-based applications and solutions are based on real-time processing of streaming data. Real-time processing and analysis of big data streams plays an important role in the development of big data-based applications and solutions. In particular, in the maritime data processing environment, the necessity of developing a technology capable of rapidly processing and analyzing a large amount of real-time data due to the explosion of data is accelerating. Therefore, this paper analyzes the characteristics of NiFi, Kafka, and Druid as suitable open source among various open data technologies for processing big data, and provides the latest information on external linkage necessary for maritime service analysis in Korean e-Navigation service. To this end, we will lay the foundation for applying open data framework technology for real-time data processing.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04b
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• pp.45-47
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• 2000

지리정보시스템 클라이언트는 Open API를 이용한 개방형((Open)구조를 지향하고 있으며 OpenGIS는 다양한 데이터 소스간의 상호운용을 지우 하는 개방형 지리정보시스템의 표준으로 자리를 잡아가고 있다. 따라서 기존의 패쇄환경(Closed Environment)에서 행해졌던 공간 데이터 동시 수정의 연구는 OLE DB와 같은 개방환경(Open Environment)에서 연구될 필요가 있다. 기존의 기법을 OLE DB에 적용할 때 문제점으로 제기되는 것은 첫째, 공간데이터 수정을 위한 변경 제어가 서버측에 위치함으로써 서버에 따라 재작성 되어야 하는 문제가 있고, 둘째, 서버의 데이터를 중복 저장하고 있는 클라이언트 데이터에 대한 일관성 유지를 위해 클라이언트의 변경 내용은 다른 클라이언트에게 통보되어야 하지만 OLE DB의 통보 메커니즘은 Rowset을 공유하는 동일 클라이언트 내에서의 통보만 가능한 구조이다. 본 논문은 공간데이터베이스 서버에 의존적인 서버부분의 기능을 미들웨어에서 구현함으로써 서버 모듈의 재작성 문제를 해결하고 서로 다른 클라이언트간의 변경 전파 프로토콜을 제시하여 서버와 독립적으로 운용할 수 있는 공간데이터 변경을 위한 OLE DB서비스 제공자 프로토콜을 설계하고 구현한 결과를 보인다.

• The KIPS Transactions:PartD
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• v.11D no.1
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• pp.203-210
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• 2004

A new research of geographic information system has been focused on an open architecture, interoperability and extensibility in their design. In order to process huge data, multidimensional data and heterogeneous geographic format data, these research move away from monolithic system to open structure system managing application layer and user interface layer. Nowadays, many developers have used CORBA middleware for the OGIS systems. However, CORBA middleware has some problems that support only a point-to-point communication and takes a long time to transfer sever data to client. Thus, in this paper, we propose a method on modifying a point-to-point communication and implement the efficient communication method. The proposed method that transfer data from sever to client in one connection support a group communication and reduce a transfer time delay.

• Journal of Aerospace System Engineering
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• v.16 no.6
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• pp.45-53
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• 2022

The avionics industry has recently adopted an open architecture to increase software portability and reduce the development schedule and cost associated with changing hardware equipment. This paper presents a data modeling method compliant with FACE, a widely used open avionics architecture. A FACE data model is designed and implemented to output data from VOR/ILS avionics equipment. A FACE Conformance Test Suite (CTS) program is utilised to verify that the data model meets FACE standards. The proposed data modeling method is expected to improve the development schedule and cost associated with modifying communication methods and ICDs (Interface Control Documents).

• Journal of Digital Contents Society
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• v.18 no.7
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• pp.1341-1346
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• 2017

In this paper, we designed the open service platform based on integrated type of individual customized service and intelligent information technology with individual's complex attributes and requests. First, the data collection phase is proceed quickly and accurately to repeat extraction, transformation and loading. The generated data from extraction-transformation-loading process module is stored in the distributed data system. The data analysis phase is generated a variety of patterns that used the analysis algorithm in the field. The data processing phase is used distributed parallel processing to improve performance. The data providing should operate independently on device-specific management platform. It provides a type of the Open API.

• Informatization Policy
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• v.25 no.3
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• pp.52-74
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• 2018

In February 2018, the Korean government established the "Comprehensive Plans for Government Innovation" in order to realize 'the people-centered government'. The core of the comprehensive plans is participation of the people, which is very similar to open innovation where social issues are solved by ideas and capabilities of the private sector rather than those of the government. Therefore, this study was conducted by extracting open innovation topics through topic modeling based on LDA(Latent Dirichlet Allocation) as English abstract-data from 2003, when the plans for open innovation was first announced, to April 2018. Based on the extracted results, it also conducted a comparative analysis with "Comprehensive Plans for Government Innovation." The study has significant implications in that it derives the relationship between the subjects, analyzes the present policies of Korea on open innovation and suggests directions for development.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.1095-1096
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• 2015

사물인터넷은 초고속 이동통신, 고감도 센서, 빅데이터 등의 발전과 함께 가시화되고 있으며, 사물인터넷의 핵심 요소인 플랫폼 기술이 대두되고 있다. 그러나 기존의 사물인터넷 플랫폼은 서로 다른 산업에 속하는 디바이스 및 응용 프로그램 간의 상호 운용성이 부족한 상황이다. 따라서 본 논문에서는 기존 사물인터넷 플랫폼의 문제점을 파악하고 차세대 개방형 사물인터넷 플랫폼에 대해 분석한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.836-838
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• 2013

In recent years, the future direction of information technology social computing, mobile computing, cloud computing. Web technology industries beyond IT convergence technology for the service side of the parameters has been developed. In particular, the rapid increase of data in a web-based open Web and the importance of the next generation Web technology is increasing. In this paper, the next generation Web technology, an open Web and the importance of increasing domestic and international standardization trends were studied.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1125-1128
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• 2000

인터넷 서비스의 이용자가 증가함에 따라 데이터 망의 구축을 위한 투자의 필요성이 제기되고 있으며, 여러 벤더들로부터 최적의 장비를 구입하여 망을 구축할 수 있도록, 통신 장비들의 상호 운용성을 지원하는 개방형 구조의 망 및 교환 시스템을 표준화하는 작업이 요구되고 있다. 본 논문에서는 개방형 교환 시스템에서 사용되는 MEGACO 프로토콜을 SDL 형식으로 설계한다. 개방형 교환 시스템은 시스템의 각 구성 요소마다 시장 경쟁 개념이 도입될 수 있도록 수평적 계층구조를 갖추고 있다. 각 계층마다 표준 인터페이스를 정의하고, 이 규격을 만족하는 다수의 벤더들로부터 성능이 우수하고 기능이 뛰어난 모들을 제공받을 수 있으므로, 망 사업자들은 특정 벤더에 종속되지 않고 개선된 양질의 서비스를 경제적으로 제공할 수 있는 개방형 교환 시스템을 쉽게 구축할 수 있게 된다.