• The Journal of Korean Institute of Communications and Information Sciences
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• v.17 no.5
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• pp.495-508
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• 1992

This paper describes on implementation of SGML(Standardized General Markup Language )parser, which can analize SGML documents and its DTD(Document Type Deflnitton) defined according to the SGML( ISO 8879) .We have constructed a yacc definition file to present the rules of SGML DTD and documents, by which incoming SGML DTD and documents can be parsed Into the appropriate tokens. with the tokens a database with the stuctures such as entity table, element table and so on is built to vali-date the logical structure of the inconung SGML documents. The additional functions of this parser Include the automatic transforminng of the incoming documents with the short references into the complete SGML documents. Several test SGML documents have tested to clarify an implementation of this parser and experimental results are satisfactory.

• Journal of KIISE:Computing Practices and Letters
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• v.6 no.5
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• pp.477-486
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• 2000

This paper is for the design and implementation of SGML document presentation system to format SGML document based on DSSSL. ISO/lEC proposed DSSSL as the technological standard for formatting and transforming SGML document. This paper shows the design of this system in accordance with the model defined in DSSSL. This system, which is able to provide Korean, has parsing function of arbitrary DTDs, SGML documents and DSSSL style sheets, and contains a formatter that can manage various specifications, such as graphs, lists, pictures, as well as text. This will satisfy a user's intent for exchange of SGML documents that involve format information between different types, greatly contribute to make up SGML document processing environment.

• Journal of KIISE:Computing Practices and Letters
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• v.7 no.6
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• pp.653-660
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• 2001

Recently, The range of Internet based information environment is spreading over core business area, as well as simple information provision area. Especially, with spreading WWW technology, markup language based technology is emerging as an important part in Internet based business. But, the data made by SGML can only see by using SGML Browser, so it has some problem in information providing at Internet, and compatibility of data between Data source. So, this study suggests essential architecture and technique for migrating from SGML to XML environment. In our study, we use 600MB SGML data that are selected from 3Tera DataBase of SGML as testing target for migration. We can reduce data displaying time after migration, can do mobile computing which is based on Internet as a result of this study. And the same technique and idea that is used in this study can apply to more large SGML Environment without changing. So, It will be very helpful to the reader who is interesting to migrate from SGML doc to XML doc.

• The Journal of Engineering Research
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• v.3 no.1
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• pp.21-27
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• 1998

This paper describes the design and implementation of system for editing SGML document instance using document structure information of SGML DTD. For make use of structure window for logical structure expression of document to SGML document editing without editing mistake of user and easy update the using support to editing process of elements, attributes, entities tools and product document, and valid using SGML parser. Also, in order to support Korean and English text using KS 5601. In this paper, the proposed SGML document editing system is used common controls support of window 95 for window user interface

• Proceedings of the Korean Society for Information Management Conference
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• 1996.08a
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• pp.67-70
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• 1996

정보처리기술이 발전하고 이용자의 정보요구가 다양해짐에 따라 MARC의 형식에 한계를 느끼고 전문과 구조적 데이터기술시 많은 장점을 갖고 있는 SGML에 대한 선호도가 높아지고 있다. SGML형식의 이점이 많다고 바로 모든 데이터와 시스템을 SGML형으로 변환할 수는 없다. 그러나 MARC은 도서관분야에서 지대한 역할을 하였지만 일정기간동안 MARC과 SGML이 공존할 뿐 궁국적으로는 SGML형식으로 바뀌게 될 것이다. 본고에서는 MARC의 문제점, SGML로의 이행과정, MARC과 SGML의 융합관계 등을 중심으로 논한다.

• Proceedings of the Korea Multimedia Society Conference
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• 1998.10a
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• pp.395-400
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• 1998

이기종 간에 문서 정보를 상호 교환할 수 있도록 국제표준기구에서는 SGML을 데이터 객체 양식 표준으로 ISO 8879로 제정하였다. 오늘 날 웹 표준 문서인 HTML이 XML로 전환되어 감에 따라 SGML의 중요성이 증대되고 있다. HTML이나 XML은 일반사용자가 사용하기 쉽게 SGML의 복잡함을 축소한 것이다. XML이나 SGML은 모두 DTD 규칙에 의재 작성되는데, DTD를 작성하기 위해서는 SGML DTD 작성 규칙을 알아야 한다. 이제 본 논문에서는 SGML DTD작성 규칙을 잘 모르더라도 쉽게 DTD를 개발할 수 있도록 GUI를 기반으로 하는 DTD 생성기를 구현하였다.

• Journal of Information Management
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• v.27 no.4
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• pp.35-56
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• 1996

SGML(Standard Generalized Markup Language) and its application to full-text database including a table, a figure and a picture are explained. A structure of SGML based full-text database Is defined by DTD(document type definition) written in SGML, and full-text itself is described with generalized markup depending on DTD. This article explains how to represent a document structure : a hierarchical structure like a chapter, a section, or a paragraph, or non-hierarchical(referencial) structure like a note, a table, a figure or a picture. Merits of SGML, electronic publishing, a retrieval system or hypertext and SGML tools are also described.

• Proceedings of the Korean Society for Information Management Conference
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• 1995.08a
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• pp.55-58
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• 1995

본 논문은 문서를 기술하는 마크업 언어인 SGML의 개념과 SGML 응용 현황들을 고찰하고 우리 글로 된 전문데이터베이스 구축시 SGML을 이용하기 위하여 필요한 사항들을 제안하였다.

• The Transactions of the Korea Information Processing Society
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• v.6 no.10
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• pp.2574-2586
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• 1999

Since a SGML document is composed of elements, the primitive unit of information, SGML information retrieval should support retrieval on element as well as document. In addition, SGML index organization should support the partial insertion and deletion of document for the dynamic environment. For this, we propose a SGML index organization suited to structured-based retrieval for dynamic environment. Based on the proposed index organization, we design a SGML index manager to support content-based and structure-based retrieval efficiently. We implement the SGML index manager based on O2 storage system and compare the performance of our SGML index manager with the conventional SGML index manager. According to the performance comparison, it is shown that the proposed index structure achieves better retrieval performance than the conventional K-ary complete tree.

• The Transactions of the Korea Information Processing Society
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• v.6 no.2
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• pp.512-521
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• 1999

SGML, defined as the ISO 8879, is a meta-language to define a document type, used as basic format for electronic documents. Since an SGML document is composed of a document type definition and a document instance conforms to the definition, it is necessary for SGML document authoring tools to compose and validate document type and document instance. In present, formal models and procedures for SGML documents are not defined, it's not easy to construct such tools. We propose a model of SGML authoring tool consists of SGML parser, document type definition editor, SGML document editor and style editor. We also introduce and implement formal procedure for each component. For user convenience, we adopted icon based visual programming method, and solved the HANGUL problems. The SGML authoring tool is implemented I Windows NT system using java and C++ programming language.