Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Meta Data Repository

  • Christoph Quix
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_909

Synonyms

Meta data base; Meta data management system; Meta data manager; Metadata Registry, ISO/IEC 11179

Definition

A meta data repository (MDR) is a component which manages meta data. In the context of database systems, one example of meta data is information about the database schema, i.e., a description of the data. In addition, MDRs can manage information about the processes which create, use, or update the data, the hardware components that host these processes or the database system, or other (human) resources which make use of the data [6]. As meta data is also data, meta data repositories offer the same functionality for meta data as database management systems (DBMS) for data, e.g., queries, updates, transactions, access control.

Moreover, as meta data is semantically rich data, MDRs often employ object-oriented data models as the basis for the definition of meta data. MDRs should also offer predefined meta models for different types of meta data, so that the user is able to...

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Recommended Reading

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.RWTH Aachen UniversityAachenGermany

Section editors and affiliations

  • Manfred Jeusfeld
    • 1
  1. 1.IITUniversity of SkövdeSkövdeSweden