• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.1143-1146
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• 2006

유선과 무선으로 구분되어 있는 망, 기술, 사업, 서비스 등의 통합, 방송과 통신, 정보통신의 융합이 함께 복합적으로 일어나는 것이 산업계 현상의 하나이다. 현재 유무선 통합에 따른 인터넷 환경이 계속 발전되고 있다. 하지만 유무선 컨텐츠에 대한 일관된 분류체계의 부재로 인하여, 기업간, 나라간, 유무선 통합 컨텐츠 비즈니스의 수행에 대한 종합적인 분석이 불가능하다. 이러한 이유로, 유무선 통합 서비스에서 제공되는 다양한 컨텐츠에 대하여 종합적인 분석을 할 수 있는 자료가 필요하다. 이러한 자료를 도출하기 위해서 본 논문은 유무선 컨텐츠를 통합 관리하는 방안으로 분류체계, 식별체계, 속성체계 및 관리 프로세스를 정립 설계하는 방법으로 유무선 컨텐츠 각각에 대한 적시적이고 폭넓은 분석수행이 가능하고, 고객과 사업자에게 일관된 가치를 제공할 수 있다. 따라서 유무선 통합 컨텐츠 메타테이터를 설계하는 것으로 유무선 컨텐츠 관리가 곧 메타데이터 관리가 되게끔 하는 것이다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.3
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• pp.586-593
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• 2009

As most of the data configuration at distributed environment has a tree structure following the hierarchical classification, relative data retrieve is limited. Among these data, the data stored in a database has a problem in integration and efficient retrieve. Accordingly, we suggest the system that uses XMDR for distributed database integration and links XMDR to TopicMap for efficient retrieve of knowledge expressed hierarchically. We proposes a plan for efficient integration retrieve through using the XMDR which is composed of Meta Semantic Ontology, Instance Semantic Ontology and meta location, solves data heterogeneity and metadata heterogeneity problem and integrates them, and replaces the occurrence of the TopicMap with the Meta Location of the XMDR, which expresses the resource location of TopicMap by linking Meta Semantic Ontology and Instance Semantic Ontology of XMDR to the TopicMap.

• Journal of the Korean Society for Library and Information Science
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• v.38 no.3
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• pp.201-219
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• 2004

The Library, Museum and Art Museum are gradually expanding access to cultural contents for general public through the distributed network. However, unlike general contents in cultural contents characteristics most the objects of cultural contents seldom contain the words used for organization and search for information. In addition, it's hard to share or interconnect information between different systems because the names, expressions and meanings are different between metadata elements of various cultural contents. In order to solve this problem, proper organization and management of metadata is vital. In this study, the researcher have comparatively analyzed the data elements of each format based on National Library of Korea, National Museum of Korea, National Museum of Contemporary Art , the metadata formats approached from various aspects in the cultural contents area, the researcher tried to provide the basic materials for integration of cultural contents by securing interoperability of different metadata formats.

• Journal of The Korean Association of Information Education
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• v.6 no.3
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• pp.317-327
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• 2002

The need to support the ICT-using teaching and learning at elementary and secondary schools has led to various digital content service systems. The systems are designed to target the teachers and the students as the major users. The problems involved in them is that they do not provide such services as the integrated search and the systematic use of interface in terms of actual users' use of teaching and learning digital content. It's because they have been created at demands at each time. In an attempt to solve this problem, this study set out to suggest the integrated meta-data items of a teaching and learning digital content, which reflects the Dublin Core Education, the international meta-data standard. It also aimed to design an entity-relationship model to realize the digital content. The results of the integrated meta-data and the entity-relationship model will be utilized as a basic research to help the users to search for various teaching and learning digital contents on an integrated basis and to realize a consistent user interface. Furthermore, they are expected to contribute to the development a service system the teachers and the students can make better use of.

• The KIPS Transactions:PartD
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• v.10D no.2
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• pp.233-246
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• 2003

The mediator-based system integrates heterogeneous information systems with the flexible manner. But it does not give much attention on the query optimization issues, especially for the query reusing. The other thing is that it does not use standardized metadata for schema matching. To improve this two issues, we propose mediator-based Distributed Information Integration System (DIIS) which uses query caching regarding performance and uses ISO/IEC 11179 metadata registry in terms of standardization. The DIIS is designed to provide decision-making support, which logically integrates the distributed heterogeneous business information systems based on the Web environment. We designed the system in the aspect of three-layer expression formula architecture using the layered pattern to improve the system reusability and to facilitate the system maintenance. The functionality and flow of core components of three-layer architecture are expressed in terms of process line diagrams and assembly line diagrams of Eriksson Penker Extension Model (EPEM), a methodology of an extension of UML. For the implementation, Supply Chain Management (SCM) domain is used. And we used the Web-based environment for user interface. The DIIS supports functions of query caching and query reusability through Query Function Manager (QFM) and Query Function Repository (QFR) such that it enhances the query processing speed and query reusability by caching the frequently used queries and optimizing the query cost. The DIIS solves the diverse heterogeneity problems by mapping MetaData Registry (MDR) based on ISO/IEC 11179 and Schema Repository (SCR).

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.184-186
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• 2004

기존의 이질적인 전자상거래 플랫폼과 시스템을 사용하므로 인해 발생하는 시스템간의 상호 호환 및 운영의 어려움이 있다. 그러나 분산 환경에서 이질적인 특성을 해결하기 위해서 XML을 기반으로 하는 쇼핑몰들의 통합된 정보 검색을 할 수 있는 사이트가 등장하여 각종 쇼핑몰 사이트를 연결하여 통합하는 과정이 진행 중이다. 따라서 상품 검색시 고객에게 메타데이터를 이용하여 선택에 필요한 정보를 제공함으로서 상품을 효율적으로 검색할 수 있다. 본 논문에서는 XML기반으로 분산 환경에서 시스템들의 이질성을 온톨로지 기반의 메타데이터를 이용하여 상품을 검색할 수 있는 시스템을 제안하고, 이 시스템을 보다 효율적으로 검색하기 위하여 일반화 온톨로지, 부품관계지향 온톨로지의 분류방법을 제안하여 분산환경에서 온톨로지 기반의 메타데이터를 이용한 상품 검색 시스템을 설계하였다.

• Journal of the Korean Association of Geographic Information Studies
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• v.6 no.4
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• pp.71-84
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• 2003

This paper designs and implements an integrated map server to produce an integrated map. Two requirements for the proposed map server are as follows. First, the system should support a customization of metadata to meet user's requirements. The map server designed here will predefine information such as representations, regions required for client-side processing in the metadata. This will allow users easily acquire an integrated map in the required form of clients. Second, the system should be able to support not only the integration of spatial data but also their non-spatial data. Fusion service is realized by using the concept of linking. The integrated map server suggested in this paper can improve the quality of the fusion service by integrating the results of the map servers according to user's requests. Our experiments shows that the integrated map server reduces the response time in web mapping environments.

• Journal of Digital Convergence
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• v.12 no.9
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• pp.201-207
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• 2014

In the cloud environment, the company needs data integration and analysis to make decision and policy. If new system is added to this environment, a lot of time and cost is needed due to disparate properties among systems when data is integrated. Therefore, in this paper, we propose a DBaaS hub system for multi-database service. The DBaaS may require a different database and need data integration for relevant service. Using the ontology, we propose a metadata query to resolve the interoperability issues between data of DBaaS. The meta-query is not a query to access the real data, but the query for the upper level. This method provides data integration by accessing the data with the converted query through an ontology when we access the actual database.We also constructs a document-oriented database system using the metadata.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.77-80
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• 2004

데이터 웨어하우스가 발전함에 따라 통합된 메타데이터는 구현뿐만 아니라 활용측면에서도 중요성이 부각되면서 이제는 전략적인 비즈니스 자산으로 여겨지고 있다. 이러한 메타데이터 표준으로 OMG(Object Management Group)에서는 CWM(Common Warehouse MetaModel)을 웨어하우스와 BI(Business intelligence)의 표준으로 채택하였다. 그러나 소프트웨어 개발 업체들간의 메타데이터 상호교환 중심으로 구현됨으로써 CWM을 사용한 메타데이터의 활용 및 저변확대가 안되고 있다. 이러한 문제점을 개선하기 위해서 CWM을 기반으로 한 레파지토리(Repository)를 설계 및 구현함으로써 CWM로 생성된 메타데이터를 저장, 보관하여 비즈니스적인 활용이 가능하도록 하였다. 또한 이러한 연구를 통하여 데이터 웨어하우스 분야에서도 MDA(Model Driven Architecture)기반의 설계 및 구현이 될 것으로 전망된다.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.11a
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• pp.355-358
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• 2003

최근 바이오인포매틱스 분야에서는 유전자 주석정보 데이터들의 통합 방안에 대한 논의가 활발하게 진행 중에 있다. 본 논문에서는 BioDAS의 웹 서비스 개념을 이용, 분산된 주석 데이터서버들간의 통합검색 시스템을 구축함으로써 메타검색 시스템을 구현하였다. 본 시스템은 사용자에게 메타검색 기능 및 결과 저장기능을 제공해 주며 외부 사용자에게 웹 서비스를 제공한다.