• Journal of Korean Library and Information Science Society
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• v.51 no.4
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• pp.249-278
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• 2020

The purpose of this study is to design metadata for management and sharing of Yeogu data produced in the ecological field. Specifically, metadata is designed based on DCAT, which is designed to facilitate interoperability between data catalogs published on the web. In addition, ABCD, Darwin Core, and EML were analyzed and applied to metadata design to reflect the characteristics of the ecological field. As a result of the research, a total of 51 metadata elements were derived for managing research data in the ecological field, and 6 essential elements, 23 recommended elements, and 22 optional elements were included. The results of this study can be used to design a DB when building a research data management and sharing system based on metadata elements, and to suggest a metadata exchange format when linking with other systems.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.33 no.3
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• pp.123-155
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• 2022

This study focuses on the management of the news production system in broadcasting companies. This paper concentrates on the process of data registration and metadata management in order to examine whether the currently produced news can have value as a 'public record' in the long term, and whether reliable and accurate information is preserved. In addition, the user experience in the current system is analyzed through in-depth interviews with Ingest Managers, Editors, and Archive Managers, who are closely related to metadata creation compared to other members of the its News Department. Finally, a sustainable metadata quality management method is sought to increase the value of news footage as a 'public record'. In this study, these points can be found out: the metadata of the news agency footage is input manually according to the user's will or working style, that is, the user-friendly metadata input system is insufficient. Accordingly, it can be seen that the quality of the metadata of the news video continues to deteriorate. As an alternative to overcome this, it is found that work flow improvement, system improvement, classification system and metadata improvement plan, etc. are definitely necessary in the short and long term.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.3
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• pp.605-613
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• 2004

Recently, the semantic web stands out in the next generation web. To realize the semantic web, the metadata integration is required between different metadatas on the web for metadata management. Otherwise, the integrated structure is needed to accommodate all of semantic, syntax and structure. RDF is one of the core technology and is more efficient framework for technology and interchange of metadata in the web, In this paper, for metadata management, we designed and implemented the RDF authoring system which converts each of metadata into RDF and makes it easy to manipulate and manage the different metadatas. For this, we researched about the RDF creation using Dublin Core metadata, the conversion of XML document into RDF, the RDF expression by N-Triple form and the integration of WSDL and RDF, and implemented the system on the lava platform. Basically, users using this system can integrate and manage metadatas easily even if they are not expert.

• Journal of the Korean Society for information Management
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• v.18 no.4
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• pp.57-79
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• 2001

The study designs and implements a metadata management system for archival and manuscripts control. It has two purposes. First purpose is to organize the collection that the Institution of Korean Church History holds by using the proposed metadata format. Second purpose is to suggest the model and framework for managing the collection. The proposed metadata is designed based on ISAD(G), USMARC AMC, EAD and Ebind, By using the proposed metadata, the collection management system, which allows an integrated retrieval, is implemented. In order to evaluate the efficiency of the proposed system as well as to gain the basic data for the improvement of the proposed system, a questionnaire survey through e-mail is conducted. The evaluation results will be utilized for improving and upgrading the proposed system, and the phrased implementation of applying the system to digital libraries is suggested.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.193-196
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• 2006

파일 시스템의 안정성에 문제가 생긴 경우, 파일 시스템의 동작이 중단되어 수정 중이던 데이터가 손실되거나 기존 데이터의 복구가 불가능하게 되는 상황이 발생 할 수 있다. 데이터의 종류에는 파일의 데이터와 같이 데이터 자체가 중요한 내용을 담고 있는 것과 파일의 데이터를 관리하기 위한 정보를 담고 있는 데이터가 있는데 후자를 메타데이터라고 한다. 단순히 파일의 데이터가 손실된 경우에 약간의 데이터 손실이 발생할 수는 있지만, 파일 시스템은 정상적으로 동작 할 수 있다. 하지만 메타데이터가 손상된 경우에는 파일 시스템이 볼륨에 접근조차 할 수 없게 되어 볼륨 내의 모든 파일을 접근할 수 없게 된다. 이러한 문제점들을 극복하기 위해 DualFS [8], log-structured 파일 시스템 [10], XFS [9] 등의 다양한 저널링 파일 시스템들이 제안되었다. 그 중 Ext$_3$ 파일 시스템은 가장 안정적이고 치명적인 문제점이 없는 것으로 알려져 있다.[7] 하지만 Ext$_3$ 파일 시스템에서 기본적으로 사용되고 있는 ordered mode 저널링은 메타데이터의 복사가 이루어져야 하기 때문에 속력의 저하가 발생한다. 본 논문에서는 ordered mode의 메타데이터의 복사 작업이 필요 없는 개선된 ordered mode 저널링을 제안한다.

• Journal of Korea Spatial Information System Society
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• v.7 no.2 s.14
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• pp.39-45
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• 2005

Nowadays, the demand of the output analyzed from the grid data have been sharply increased as the remote sensing technologies and GIS related industry have been developed. Therefore, a metadata access system which fits the requirements of the users should be developed for better managing and utilizing gridded data. In this background, this study defined a common application schema through the analysis of the metadata built by numerous institutes based on the draft metadata standards. The draft metadata standards has been proposed from the study supported by ETRI at 2003 which mainly concentrated on establishing the standards of distributing metadata for the grid data. Also, XML based integrated system was developed to access metadata maintained by SaTReC as well as SIMC to facilitate more convenient data access for the grid data users. The results of the pilot system developed from this study can be expected to contribute to build more efficient and enlarged integrated access system of metadata for grid data.

• Journal of the Korean Society for information Management
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• v.27 no.4
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• pp.169-191
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• 2010

This study aimed at developing preservation metadata elements and its applications for research information which is considered as a valuable digital resource these days. Specifically, the developed preservation metadata intends to provide a basis for the research information of the government-funded research institutes in economic and social science fields which are major knowledge producers of national policy. To ensure the interoperability of the research information across various departments and organizations, this study compared the elements from the CERIF(European Standard) and those from the PREMIS Data Dictionary which is based on OAIS reference model (ISO 14721). Based on this comparative analysis, this study developed complementary preservation metadata elements based on the two standards' characteristics. Consequently, this study suggested a new preservation metadata elements and its applications that are compatible between the two systems and can be implemented in practice.

• Journal of the Korean Society for information Management
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• v.24 no.4
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• pp.191-221
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• 2007

The goal of this study was to examine the relationships between usability and the searching experience, and to uncover where an integrated cataloging and metadata system lay the usability problems of its primary users, catalogers. This study showed that the most important aspect of usability in Connexion lay in the experience of information retrieval system. Also, it showed there are seventeen usability problems to be improved in Connexion. Needless to say, it is most important to note that usability is not an exclusive goal of such an integrated cataloging and metadata system. Other goals such as quality of catalogs, and the reliability of its cataloging and metadata system are equally its concern. This study also suggested more testing on diverse cataloging systems and specific user groups, especially catalogers.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.130-132
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• 2003

현재 세계 각국에서 많은 메타데이터 레지스트리들이 구축되어 왔다 그러나 메타데이터 레지스트리가 국제 표준(ISO/IEC 11179)임에도 불구하고 일관성 있는 표준 접근 인터페이스를 제공하지 않음으로써 각각 다른 연산으로 구현되었다. 이는 각각의 메타데이터 레지스트리 구축시 동일한 연산 패턴의 중복된 구현으로 인한 불필요한 비용을 야기한다. 국제 표준인 메타데이터 레지스트리에 대한 접근시 시스템 마다 동일한 연산 패턴을 지니게 된다. 이 논문에서는 이와 같이 메타데이터 레지스트리에서 공통적으로 사용되는 연산 패턴을 분석하고 정의한다. 또한 분석된 연산 패턴을 이용하여 표준 SQL을 확장한 SQL/MDR을 정의하고 설계한다. 설계된 SOL/MDR은 메타데이터 레지스트리 관리 시스템 개발에 표준 접근 방법을 제공한다. 또한 이는 개별적인 개발로 인한 추가적인 노력을 감소시키고 메타데이터 레지스트리에 대한 보다 일관성 있는 접근을 가능하게 한다.

• The KIPS Transactions:PartA
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• v.8A no.4
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• pp.367-374
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• 2001

Recently, LINUX cluster file systems based on the storage area network (SAN) have been developed. In those systems, without using a central file server, multiple clients sharing the whole disk storage through Fibre Channel can freely access disk storage and act as file servers. Accordingly, they can offer advantages such as availability, load balancing, and scalability. In this paper, we describe metadata management schemes designed for a new SAN-based LINUX cluster file system. First, we present a new inode structure which is better than previous ones in disk block access time. Second, a new directory structure which uses extendible hashing is described. Third, we describe a novel scheme to manage free disk blocks, which is suitable for very large file systems. Finally, we present how we handle metadata journaling. Through performance evaluation, we show that our proposed schemes have better performance than previous ones.