• Journal of the Korean Society for information Management
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• v.21 no.3
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• pp.185-202
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• 2004

The electronic documents have the documental aspect that can legible by human and the electronic aspect that can be interpreted and processed automatically by machinery. This usability of electronic documents must be the reason that people use them in almost all the business areas rapidly in these days. That is because we have to utilize the characteristics to interchange electronic documents(EDI) effectively and efficiently. The electronic document interchange of Korean government cannot make the best of this benefit due to the traditional way of thinking based on paper document and the viewpoint of individual business, organization. and project. This paper proposed a direction of ED! for Korean government. At first. the concept of electronic docuemnts is defined. The reason and limitations of structuring the documents with XML and the hidden problems of present ED! in Korean public sector are also explained. And the way to preserve information, to design the structure of electronic document. and to maintain relevant standards is proposed.

• The KIPS Transactions:PartD
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• v.9D no.6
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• pp.1127-1136
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• 2002

In the medical field. the desire of the hospital information system based on the advanced computer technology has been increased because hospital staffs wanted to provide better medical services to their patients by using it. So, the electronic medical records have emerged to share and exchange medical and healthcare information stored in database. In this paper. we developed an electronic medical record system using XML. This system includes four modules : data repository. document structure manager, document writter and XML automatic generator. For the purpose of evaluating the usability of the electronic medical records of our system, we also applied it to out-patient medical records in the department of orthopedic surgery.

• The Journal of Engineering Research
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• v.6 no.1
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• pp.151-160
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• 2004

The Web which supplied static information by web page administrator takes big change, recently, since the web service of new concept called 'WikiWiki' appeared. Wiki system can have gotten very active participation of users because everybody who inspect web page can exchange and add page freely. This paper shows that Wiki engine system implemented by XML and XSLT etc., and explains how to manage the history of document change.

• Journal of KIISE:Databases
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• v.30 no.1
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• pp.27-40
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• 2003

The inverted index widely used in the existing information retrieval field should be extended for XML documents to support containment queries by XML information retrieval systems. In this paper, we consider that there are two methods in storing the inverted index and processing containment queries for XML documents as the previous work suggested: using a RDBMS or using an inverted lift engine. It has two drawbacks to extend the inverted index in the previous work. One is that using a RDBMS is moth worse in the performance than using an inverted list engine. The other is that when containment queries are processed in a RDBMS, there is an increase in the number of a join operation as the path length of a query increases and a join operation always happens between large fables. In this paper. we extend the inverted index in a different way to solve these problems and show the effectiveness of using a RDBMS.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.5B
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• pp.482-490
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• 2004

Recently, XML has been emerging as a standard for storing and exchanging of data for various distributed applications based on the Internet. Since there are increasing demands to store and manage XML documents, a lot of research works are going on this area to develop new took and techniques based on the XHL. However, most of the researches are concentrated on mapping techniques based on instance or DTD, and the main focus is on structural transformation. Current trend of research is toward the usage of XML documents based on XML schema, and demands not only conversion of structure but also preservation of the semantic constraints. This paper sets up the using of DIDL standing on the basis of XML schema from MPEG-21 as an application domain, and proposes the mapping model that can preserve semantic constraints in addition. We expand previous research techniques in the preprocessing step for the specific domain, and then, apply various new mapping methods in the postprocessing step. We present and discuss the system architecture for implementation, and introduce the algorithms and present implementation environment and semantic extension methodology in detail. Finally we show actual table and query processing based on our proposal.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.55-62
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• 2009

In u-GIS environment, we collect spatial data needed through sensor network and provide them with information real-time processed or stored. When information through Internet is requested on Web based applications, it is transmitted in XML. Especially, when requested information includes spatial data, GML, S-XML, and other document that can process spatial data are used. In this processing, real-time stream data processed in DSMS is transformed to S-XML document type and spatial information service based on web receive S-XML document through Internet. Because most of spatial application service use existing spatial DBMS as a storage system, The data used in S-XML and SDBMS needs transformation between themselves. In this paper, we propose S-XML a transformation method using caching of spatial data. The proposed method caches the spatial data part of S-XML to transform S-XML and relational spatial database for providing spatial data efficiently and it transforms cached data without additional transformation cost when a transformation between data in the same region is required. Through proposed method, we show that it reduced the cost of transformation between S-XML documents and spatial information services based on web to provide spatial information in u-GIS environment and increased the performance of query processing through performance evaluation.

• Journal of KIISE:Databases
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• v.31 no.4
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• pp.432-443
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• 2004

As the XML data has been widely used in the Internet, it is necessary to store and retrieve the XML data by using DBMSs. However, relational DBMSs suffer from the model difference between graph structure of the XML data and table forms in relational databases. We propose an ORDBMS-based DTD-dependent XML data management system Xing. Xing stores XML data in a DTD-dependent form in an object database. Since the object database schema has a graph structure and supports multi-valued attributes, mapping from an XML data model and queries into an object data model and OQLs is a simple problem. For rapid storing of large quantities of the XML data, we use SAX parser with customized Xing-tree which requires a small memory space compared with the DOM-tree. Xing also returns the query result in an XML document form. We have implemented the Xing system on top of UniSQL object-relational DBMS for the validity checking and performance comparison. For XML genome data from GenBank, and experimental evaluation shows that Xing can provide significant performance improvement (maximum 10 times) compared with the relational approach.

• 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.

• The Journal of Korean Association of Computer Education
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• v.7 no.2
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• pp.11-23
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• 2004

Delivering documents within school itself, has been ignored, since it is not considered as a large organization such as government education agencies. It is necessary to change the procedures in delivering official documents within school's administrative services along with the outside administrative procedure changes. For the above purposes, this study can be practiced toward the actual schools therefore it is to design the framework for Distributable Official XML Document management and to implement official document management system based on JSP component. As a result, this system will reduce the negativity in producing the time critical official documents in educational activities. It is important at the fact that electronic document management procedures will incredibly improve the quality in school's administrative services.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.717-719
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• 2001

인터넷의 급격한 확산에 따라 컴퓨터 응용산업은 이를 응용하려는 노력과 연구가 활발히 진행되었다. 또한, 다변화되는 수요환경에 따라 점차 응용소프트웨어의 효율성에 문제점이 제기 되었고, 이를 보완할 수 있는 보다 포괄적이고 효과적인 소프트웨어 분석 및 개발기법들이 제시되었다. 이에, 본 논문에서는 이들 요소들을 적용하여 자동화시스템에서 운용한 수 있는 인격제어관리시스템을 구현 및 개발하였다. 즉, 본 시스템의 개발을 위한 분석 부분에서는 UML을 이용한 Use Case Diagram, Sequence Diagram, Collaboration Diagram등을 활용하였으며, 개발 부분에서는 웹 기반의 문서 데이터 표준을 위하여 XML을 이용하였고 Java언어로 이를 보완하였다.