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Cataloguing and Classification by Fotis Lazarinis

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12

Metadata

Abstract

Metadata is data about other data. This chapter introduces some of the best-known metadata schemes and discusses their importance in the description of digital objects.

Keywords

Metadata

XML

DC

MODS

TEI

EAD

VRA Core

12.1 Introduction

Metadata is, by definition, data about other data. Although the term comes from computer science, data about data have existed from the early days of library science. Classification numbers and subject headings are some notable examples, as they are actually extra data about a resource. But metadata schemes are new, standardized structures, usually expressed in XML (eXtensible Markup Language),1 which differ from traditional cataloguing standards and are primarily aimed for the Web. Digital ...

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