• The Journal of the Korea Contents Association
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• v.4 no.4
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• pp.89-97
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• 2004

Web-Mail Services are implemented with SMTP and POP3 in these days. These web mail services provide not only the basic sending and receiving functions but also additional functions for user. However, the sent and received data are stored in the web mail server. So general web mail users can't process their mail data if they have not access ID for the web mail server. In this paper, we design and implement WMIS (Web Mail Integration System) using XML. In the proposed system, mail data and user's environments in the old web mail system are transformed into XML documents and inserted into database. In order to store XML data into database, we use dynamic document processing method and analyze XML file by record unit. When the users change their mail accounts, they easily can establish the web environments and their mail data. Because the transformed XML document is converted into WML easily, the WMIS can reduce development cost, labors and time.

• Journal of Korea Multimedia Society
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• v.9 no.7
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• pp.773-781
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• 2006

XML is a standard language to express and exchange the data over the web. Recently, researches about techniques that storing XML documents into RDBMS and managing it have been progressed. These researches use a technique that are receiving the DTD document as an input and generate the relational schema from it. Existing researches, however, do not consider the semantic preservation because of the simplification of the DTD. Further, because existing studies only focus on the preservation technique to store information such as content and structure, there is a troublesomeness that have to use the stored-procedure or trigger for the data integrity during the stores of XML documents. This paper proposes a improved Inlining technique to create effective relations and to preserve semantics which can be inferred from DTD.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.23-26
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• 2005

XML이 발표되면서 대용량의 XML을 효과적으로 관리하는 여러 가지 방법들이 연구되고 있다. 특히 지금까지 상업적, 기술적으로 성공적이고 안정된 데이터 모델인 관계형 데이터베이스를 활용하는 여러 가지 방법들이 연구되고 있다. 본 논문은 관계형 DBMS를 사용하여 XML 질의어인 XQuery를 SQL로 변환하여 처리하는 효율적인 방법을 제안한다. 우선 본 논문에서 제안하는 방식은 XML문서를 분할하여 관계형 테이블에 저장하는 분할방식을 사용하며, 분할된 관계형 테이블을 이용하여 XPath를 포함한 XQuery의 기능을 실행하는 SQL을 생성하여 관계형 DBMS에서 SQL을 실행하는 방식을 사용한다. 제안한 XQuery 처리방식은 먼저 XQuery의 구문 분석을 통하여 AST(Abstract Syntax Tree)를 생성하고, AST를 순회하면서 SQL문장을 생성한다. 생성된 SQL문장은 XML 문서의 경로를 사용함으로써 XQuery 연산의 조인 횟수를 감소시키며, 각 노드마다 부여된 순서 정보를 효과적으로 사용하여 문서의 원래 순서에 맞는 XML 부분을 생성하는 방법을 제시한다. 그리고 실제 제안된 시스템을 개발하여 그 성능을 평가한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.496-499
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• 2003

It is said that electronic documents to exchange information about goods and service in electronic form for electronic commerce between enterprise and enterprise (B2B) liver or enterprise and consumer(B2C) are e-Catalog, e-Catalog used in electronic commerce is important element that can express well enterprise's special quality of goods and product effectively from infinite Internet space. However, e-Catalog system been using in electronic commerce is no clear concept and consistent component etc. and is constructing each other dissimilar system and there is shortcoming that can not use e-Catalog information in exchange and transaction thereby. Hereupon, in this paper, defined e-Catalog document rescue that can process goods information configurationally using XML Schema to increase interoperability in selfishness species system. Also, change e-Catalog document that was defined as XML to e-Catalog document of other structure using XSLT and designed and embody integrated e-Catalog system so that may manage.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.7
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• pp.1582-1589
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• 2003

It is said that electronic documents to exchange information about goods and service in electronic form for electronic commerce between enterprise and enterprise(B2B) liver or enterprise and consumer(B2C) are e-Catalog, e-Catalog used in electronic commerce is important element that can express well enterprise's special quality of goods and product effectively from infinite Internet space. However, e-Catalog system been using in electronic commerce is no clear concept and consistent component etc. and is constructing each other dissimilar system and there is shortcoming that can not use e-Catalog information in exchange and transaction thereby. Hereupon, in this paper, defined e-Catalog document rescue that can process goods information configurationally using XML Schema to increase interoperability in selfishness species system. Also, change e-Catalog document that was defined as XML to e-Catalog document of other structure using XSLT and designed and embody integrated e-Catalog system so that may manage.

• Korean Journal of Construction Engineering and Management
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• v.7 no.1 s.29
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• pp.64-72
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• 2006

The participants of steel works should exchange a variety of information with others through documents. However construction steel works in the multistage contract system has a difficulty in exchanging information through the documents promptly. So if the trouble as change orders arise, conducting steel works will take much time, and the participants may not discuss the trouble sufficiently. Consequently this study improved the current business process of steel works. And this developed business support system(XCOS) based on XML so that participants of steel works achieve a successful management of steel works through conducting business rapidly and correctly.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1505-1508
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• 2000

최근에 들어와서는 정보의 양이 급격히 증가하고, 인터넷이 대중화되면서 정보를 표준화된 형태로 저장해 그 활용도를 중대시키는 것과 함께 이를 웹 환경을 통해 제공함으로써 대중성을 확보하는 것에 새로운 XML(extensible Markup Language)표준을 사용하였다. 즉, XML은 웹 기반 애플리케이션을 통해 데이터를 표현하고 고찰하기 위한 표준 공통 포맷인 마크업 언어이며, 사용자가 문서를 적절히 구조화해서 저장시킬 수 있는 장점으로 인해 기존의 HTML로 구축된 웹 서비스 환경 보다 데이터베이스화하기 쉽고 다양하며 복잡한 검색 환경이 제공되므로 최근에는 XML 문서를 데이터베이스에 저장하고 효율적인 관리 및 검색을 지원하는 작업에 많이 응용되고있다. 따라서, 본 논문은 XML을 이용하여 웹에서 사용할 수 있는 학생관리 시스템을 구현하였으며 이는, 하나의 학생 데이터를 DTD(Document Type Definition)로 구현하여 교수와 학생에 따라 나타내는 정보를 다르게 하였다. 즉, 하나의 DTD 자료를 기본으로 하여 서로 다른 사용자들이 자신의 관점에 맞는 정보를 검색할 수 있었다.

• The Journal of Korean Association of Computer Education
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• v.6 no.4
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• pp.125-134
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• 2003

The education of 21st century is developed to the closely connected and integrated education, and the ICT applied education is suggested as an approach to teaching-learning method. In this paper, we suggest an teaching-learning pattern and strategy of Technology course as an example of the ICT applied education, and provide an implementation for the efficient XML document creation and storage system of teacher's subject data. And we have confirmed the utilization of this system which it improves the efficient management and preservation of educational data and also it raises the value of educational data by decreasing the burden of re-editing the educational documents for similar business.

• The Journal of Korean Association of Computer Education
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• v.3 no.2
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• pp.47-57
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• 2000

Many people have been building HTML documents due to rapid spread and growth of web. However, HTML has limits in satisfying user's requirements, so that XML has emerged. In this paper, we design and implement student information management programs and presentation methods for maintaing the general student life archives and the analysis of results of examinations using XML and web browser. We define a XML DTD for general student life archives, and build XML documents. A private student life archive is printed from XML documents on the web using XMLDOM, DATA-BINDING, and XSL. Also, personal items and a roll book of a class can be printed and searched. In order to analyze the result of examinations we define DTD and build XML documents according to the DTD.

• The KIPS Transactions:PartD
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• v.15D no.2
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• pp.171-178
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• 2008

Since the XML standard was introduced by the W3C in 1998, documents that have been written in XML have been gradually increasing. Accordingly, several systems have been developed in order to efficiently manage and retrieve massive XML documents. BitCube-a bitmap indexing system-is a representative system for this field of research. Based on the bitmap indexing technique, the path bitmap indexing system(LH06), which performs the clustering of similar paths, improved the problem that the existing BitCube system could not solve, namely, determining similar paths. The path bitmap indexing system has the advantage of a higher retrieval speed in not only exactly matched path searching but also similar path searching. However, the similarity calculation algorithm of this system has a few particular problems. Consequently, it sometimes cannot calculate the similarity even though some of two paths have extremely similar relationships; further, it results in an increment in the number of meaningless clusters. In this paper, we have proposed a novel method that clustering, the similarity between the paths in order to solve these problems. The proposed system yields a stable result for clustering, and it obtains a high score in clustering precision during a performance evaluation against LH06.