• Title, Summary, Keyword: Database Integration

Search Result 481, Processing Time 0.043 seconds

A Study on Hybrid Database Integration Model for Product Data Management (PDM을 위한 하이브리드 데이터베이스 통합 모델에 관한 연구)

  • Lee, Kang-Chan;Lee, Sang;Yoo, Jung-Yeon;Lee, Kyu-Chul
    • The Journal of Society for e-Business Studies
    • /
    • v.3 no.1
    • /
    • pp.23-41
    • /
    • 1998
  • In a centralized database system, all system components reside at a single platform. In recent years there has been a rapid trend toward the integration of information systems over multiple sites that are interconnected via a communication network, and users' needs are changed to integration of multiple information sites. Multi database System is one of solutions for integrating distributed heterogeneous databases. However the problems in multi database system are restriction in distributed environment support, limitation in integrating heterogeneous media type data, static integration, and data-only of integration. In order to solve these problems, we propose a hybrid database integration model, HyDIM. HyDIM is used for the integrating legacy multimedia data, adopting CORBA, MDS, and mediator. We demonstrate a prototype system far PDM application domain.

  • PDF

Design of Database Integration System and Query System based on Global View Generation Tool (전역 스키마 생성 도구를 이용한 데이터베이스 통합 및 질의 시스템)

  • Park, U-Chang
    • Journal of Internet Computing and Services
    • /
    • v.8 no.3
    • /
    • pp.65-74
    • /
    • 2007
  • Database integration is a common and growing challenge with the proliferation of database systems, data warehouses, data marts, and other OLAP systems in organizations. Although there are many methods of sharing data between databases, true interoperability of database integration system that improves in the database federation architecture by allowing domain administrators to simply and efficiently capture database semantics. The semantic information is combined using a tool for producing a global view. Building the global view is the bottleneck in integration because there are few tools that support its construction, and these tools often require sophisticated knowledge and experience to operate properly. The technique and tool presented is simple and powerful enough to be used by all database administrators, yet expressive enough to support the majority of integration queries.

  • PDF

Integration with External Information Using Ontology for Rural Amenity Resources Information Service (농촌어메니티자원 정보서비스를 위한 Ontology를 활용한 외부정보 통합방안)

  • Lee, Ji-Min;Lee, Jeong-Jae
    • Journal of Korean Society of Rural Planning
    • /
    • v.12 no.4
    • /
    • pp.53-61
    • /
    • 2006
  • Rural amenity resources consist of natural, cultural and social resources. Some of resources have been surveyed in other institutes and organizations and information system about these resources has been constructed. Integrating with information of existing system or database is helpful to produce useful rural amenity resources information to users. This integration of distributed information is based on semantic integration. In this paper, we used ontology for semantic integration and introduced the method of external information integration using ontology. We designed ontology table to represent ontology in database and integrated distributed information using ontology. To examine the improvement of information service efficiency and the applicability, rural amenity resources information and tourist attraction information database were constructed and integrated. Also, the information service efficiency with information integration was evaluated using recall ratio and compared to the information service efficiency without information integration.

Map Reduce-based P2P DBaaS Hub system

  • Jung, Yean-Woo;Lee, Jong-Yong;Jung, Kye-Dong
    • International journal of advanced smart convergence
    • /
    • v.5 no.1
    • /
    • pp.16-22
    • /
    • 2016
  • The database integration is being emphasized to one way of the companies collaboration. To database integration, companies are use like one database what their own, it can be provided more efficient service to customer. However, there exist some difficulty to database integration. that is the database security and database heterogeneity problems. In this paper, we proposed the MapReduce based p2p DBaaS hub system to solve database heterogeneity problem. The proposed system provides an environment for companies in the P2P cloud to integrate a database of each other. The proposed system uses DBaaS Hub for a collection of data in the P2P cloud, and use MapReduce for integrating the collected data.

A methodology for view integration in manufacturing database design (제조 데이타베이스 설계에서의 뷰 통합 방안)

  • 신기태;박남규;박진우
    • Korean Management Science Review
    • /
    • v.11 no.3
    • /
    • pp.87-102
    • /
    • 1994
  • Conceptual database design is an important activity because the performance of a DBMS heavily depends on the proper design of the database, and view integration is one of the most important phases of conceptual database design. During this phase, the individual views designed by separate user groups are integrated into a global view for the entire system. After the view integration, a database schema must be validated before it becomes a stable product of the design. In this paper, a methodology for view integration an validation is suggested. The individual views are modeled by entity-relationship model. The entities are integrated according to their name and domain information. After that, the relationships are merged by their constraints. We also present a methodology for checking redundant relationships which has an algorithmic description.

  • PDF

A Database Schema Integration Method Using XML Schema (XML Schema를 이용한 이질의 데이터베이스 스키마 통합)

  • 박우창
    • Journal of Internet Computing and Services
    • /
    • v.3 no.2
    • /
    • pp.39-56
    • /
    • 2002
  • In distributed computing environments, there are many database applications that should share data each other such as data warehousing and data mining with autonomy on local databases. The first step to such applications is the integration of heterogeneous database schema, but there is no accepted common data model for the integration and also are difficulties on the construction of integration program. In this paper, we use the XML Schema for the representation of common data model and exploit XSLT for reducing the programming difficulties. We define the schema integration operations and develop a methodology for the semi-automatic schema integration according to schema conflicts types. Our integration method has benefits on standardization, extendibility on schema integration process comparing to existing methodologies.

  • PDF

A Study on the Database Integration Methodology using XML (XML을 이용한 데이터베이스 통합방안에 관한 연구)

  • OH Se-Woong;Lee Hong-Girl;Lee Chul-Young;Park Jong-Min;Suh Sang-Hyung
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • /
    • pp.353-360
    • /
    • 2005
  • Database Integration problems has been recognized as a critical issue for effective logistics service in logistics environment. However, researches related to effective methodology for this have been studied theoretically in the DB schema integration, are insufficient in the side of the system realization. The aim of this paper is to present a schema integration technique to integrate DB using XML(eXtensible Markup Language) in the part of practical DB integration, a quantitative methodology for the identification of conflict that is a representative problem on database integration. To achieve this aim, we extracted the entity name and attribute name from DB schema and suggested a quantitative methodology to easily fine name conflict that frequently give raise to a trouble when schema integration, based on the level of semantic similarity between attributes and entities.

  • PDF

A Study on the Database Integration Methodology using XML (XML을 이용한 데이터베이스 통합방안에 관한 연구)

  • Oh Se-Woong;Lee Hong-Girl;Lee Chul-Young;Park Jong-Min;Suh Sang-Hyung
    • Journal of Navigation and Port Research
    • /
    • v.29 no.10
    • /
    • pp.883-890
    • /
    • 2005
  • Database Integration problems has been recognized as a critical issue for effective logistics service in logistics environment. However, researches related to effective methodology for this have been studied theoretically in the DB schema integration, are insufficient in the side of the system realization. The aim of this paper is to present a schema integration technique to integrate DB using XML( eXtensible Markup Language) in the part of practical DB integration, a quantitative methodology for the identification of conflict that is a representative problem on database integration. To achieve this aim, we extracted the entity name and attribute name from DB schema and suggested a quantitative methodology to easily fine name conflict that frequently give raise to a trouble when schema integration, based on the level of semantic similarity between attributes and entities.

Machining Feature Database for CAD/CAPP Integration in Mold Die Manufaturing (사출 금형의 CAD/CAPP 통합을 위한 가공 형상 데이터베이스)

  • 노형민;이진환
    • Transactions of the Korean Society of Mechanical Engineers
    • /
    • v.16 no.2
    • /
    • pp.259-266
    • /
    • 1992
  • For CAD/CAPP integration, part information on not only geometry but also machining characteristics should be delivered and commonly used between designers and process planners. In this study, the machining features, as linking factors of the integration, are represented as the combination of functional features and atomic features and grouped into a hierarchical database. And the feature based modelling approach is used by generating information on the machining features in design stage. These features are drawn by analyzing real decision rules of process planners. The database using the machining features is built and used for application modules of process planning, operation planning and standard time estimation.

Requirement Analysis for Bio-Information Integration Systems

  • Lee, Sean;Lee, Phil-Hyoun;Dokyun Na;Lee, Doheon;Lee, Kwanghyung;Bae, Myung-Nam
    • Proceedings of the Korean Institute of Intelligent Systems Conference
    • /
    • /
    • pp.11-15
    • /
    • 2003
  • Amount of biological data information has been increasing exponentially. In order to cope with this bio-information explosion, it is necessary to construct a biological data information integration system. The integration system could provide useful services for bio-application developers by answering general complex queries that require accessing information from heterogeneous bio data sources, and easily accommodate a new database into the integrated systems. In this paper, we analyze architectures and mechanisms of existing integration systems with their advantages and disadvantages. Based on this analysis and user requirement studies, we propose an integration system framework that embraces advantages of the existing systems. More specifically, we propose an integration system architecture composed of a mediator and wrappers, which can offer a service interface layer for various other applications as well as independent biologists, thus playing the role of database management system for biology applications. In other words, the system can help abstract the heterogeneous information structures and formats from the application layer. In the system, the wrappers send database-specific queries and report the result to the mediator using XML. The proposed system could facilitate in silico knowledge discovery by allowing combination of numerous discrete biological information databases.

  • PDF