• Journal of National Security and Military Science
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• s.2
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• pp.237-260
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• 2004

As the research work about XML based on the development of Internet and according to the information exchange standard is being carried out, the need of discovering new methods to store XML documents and manage them efficiently according to the frequency of large-capacity XML documents increases. Consequently, as a kind of back-end database system, XML storage systems such as RDBMS, OODBMS and Native XML DBMS etc. are coming forth in order to save XML documents. It is an urgent task to make comparisons among usage expense, function comparison storage, inquiry, and manage dimension for each DBMS. This paper makes an analysis and comparison of DTD-independent XML document access methods in RDBMS, OODBMS and Native XML DBMS for XML storage and management. After analyzing the advantages and disadvantages of each access method and comparing the function of typical commerce DBMS such as Oracle 8i, eXcelon and Tamino for finding the possibility of military applications, an another appropriate method to save XML documents is proposed as to find an implementation approach to save structural XML documents.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10c
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• pp.252-255
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• 2006

본 논문은 XML스키마 문서에서 정의된 컴포넌트 요소들의 타입-엘리먼트 복합 계층 구조와 타입 계층 구조를 그래피컬하게 파악할 수 있는 XML 스키마 브라우저를 구현한 것이다. XML 스키마 브라우저의 설계 및 구현 방법을 제안하고, 그 기능을 서술한다. 구현된 XML 스키마 브라우저를 사용함으로써 복잡한 XML 스키마 문서의 구조를 한눈에 쉽고 정확하게 파악할 수 있다.

• Proceedings of the KAIS Fall Conference
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• 2001.05a
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• pp.378-382
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• 2001

최근 의료계에서는 의무기록을 전자문서화 하는 연구가 활발히 진행되고 있다. 더불어 전자의무기록의 표준화에 대한 노력도 병행되고 있으며, XML이 이에 대한 대안 중 하나로 제시되고 있다. 이에 따라 기존 병원 정보시스템에 구축된 의료정보를 XML로 변환하는 방법에 대한 연구가 요구된다. 본 논문에서는 간략화한 의무기록을 XML로 표현하는데 필요한 DTD를 제안하며, Java 프로그래밍 언어를 이용하여 기존 병원의 Legacy Database에 기록된 의무기록 자료를 XML 문서로 변환하고, 전자의무기록 XML 문서를 병원정보시스템에서 활용할 수 있도록 Database에 기록하는 Converter를 구현하였다.

• Journal of Korea Multimedia Society
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• v.6 no.2
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• pp.183-193
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• 2003

The importance of XML data and their database supports in a mobile terminal system is on the increase. It leads to active research for embedded XML database systems. In order to handle in documents, DOM API should be supported. The existing DOM API is not suitable for the embedded system with limited resource because the DOM tree requires a large space on main memory. Considering poor resource of embedded systems, we present persistent DOM which is implemented on Berkeley DB and DOMdbm which manages it.

• Journal of the Korea Society of Computer and Information
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• v.14 no.3
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• pp.57-64
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• 2009

XML has become a do facto standard for structured document and data on the Web. An XML data deluge over the network will be more, since XML based standards such as Web Service and Semantic Web gets popular. There are efforts to store and query XML documents in a relational database system and recent efforts focus on how to provide such operations using XPath and XQuery. In this paper, we present study about those research efforts and we propose a new scheme to stoγe and query XML documents in a relational database using XPath query. The scheme uses a 'shred' method to store and translates XPath queries to SQL. We also present our empirical experiments using a RDBMS.

• Digital Contents
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• no.9 s.76
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• pp.12-13
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• 1999

인터넷 이용이 세계적으로 확산되면서 인터넷의 기반이라 할 수 있는 프로그래밍 언어도 날로 발전하고 있다. 그 중 기존 인터넷 표준 언어인 HTML이 XML이라는 차세대 언어로 대체되고 있다. 현재 XML은 전자상거래를 비롯해 DBMS, ERP, 전자도서관, 지식관리시스템, 정보검색시스템 등 거의 모든 분야에 걸쳐 활용되는 등 비즈니스 가치가 높아지고 있다. XML과 관련한 정보 기술업계의 대응에 대해 살펴봤다.

• Journal of KIISE:Computing Practices and Letters
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• v.11 no.5
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• pp.416-426
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• 2005

A B2Bi system needs a message storage subsystem that efficiently logs and searches XML messages which have been sent from orreceived by it. XML database systems and XML enabled relational databases systems are not adequate as a message storage system because of their expensiveness and excessiveness in functionality. Storage schemes that split XML messages into database records are also unacceptable because of either low performance or implementation hardness. In this paper, we propose a storage scheme that can be applied to implement a message storage system based on a relational database system. In this scheme, messages are examined only through the index fields that have been registered for each message types. Therefore, the proposed storage scheme cannot support such a powerful search facility like XQL, but it provides high performance message legging and restricted search facility. There are three alternative database schemas to store the index fields. This paper compares the advantages and disadvantages of the three schemas through experimental tests.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.1
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• pp.87-98
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• 2008

Electronic Navigational Charts (ENCs) are digital charts encoded in S-57 format, which contain navigational informations such as coastlines, depth areas, and nautical marks. Although they have been successfully used for the safe navigation of ships, they have limited usages and applications because of their specialized data format and access systems. To cope with such drawbacks, S-57 ENCs need to be transformed into more generalized format such as Geography Markup Language (GML). The transformed GML ENCs can be kept in a database for efficiency, and can be accessed through Internet for usability. This paper proposes a new method for transforming and managing ENCs with XML database. S-57 ENCs are lust transformed into GML format, and then stored in a XML database. On the database, users can query for their needs. To validate the feasibility of the proposed method, we developed a protype system, and then conducted several test runs. The system can provide users with easy access to the marine information contained in ENCs. It also provides compatibility and efficiency by virtue of GML and XML database, respectively.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.2
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• pp.39-53
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• 2010

In this paper, we suggest an XML Development Support(XDS) System as a good developing tool to solve the problems that related with the database integration, increased to the developing terms and costs when the developing of XML programming base on the web server. XDS System is designed for the purpose of easily coding the XML program, of simply changing the programming structure and of completely maintaining the program environment. According to the predefined policy, XDS System provides necessary informations such as tables, columns, or relational keys from Database for developer. The developer step by step selects or sets what he needs. And XDS System creates an XML Tree with the result of selected information. The XML Tree includes all information of making an XML Schema and some XML Stylesheet. XDS System creates an XML Schema for all clients and creates many XML Stylesheets for each client using the XML Tree.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.11a
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• pp.117-120
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• 2004

인터넷의 사용 증가로 정보의 양은 기하급수적으로 증가하고 있으며 웹 데이터의 표준인 XML의 데이터 표현의 유연성으로 인해 EDMS(Electronic Document Management Syste), ebXML(e-business extensible Markup Language)등 웹 기반의 전자문서를 이용하는 XML를 문서 교환 및 표준 문서 형식으로 도입하고 있는 실정이다. 이런 XML문서들을 저장관리 하기 위해 XML전용 Database도 현재 많이 연구되고 있다. 하지만 이런 XML전용 Database들은 관계형 데이터베이스보다 실용성이 떨어지는 점들이 많아 XML과 관계형 데이터베이스 매핑에 대한 연구도 활발히 진행중이다. 본 논문에서는 $C{\sharp}$을 이용하여 XML과 관계형 데이터베이스 간의 매핑을 위한 모듈을 개발하였으며, XML의 element와 관계형 데이터베이스의 필드를 상호 매핑시켜 줌으로 인해 XML문서의 element를 정확하게 저장, 관리 할 수 있다.