Add marcxml and dc

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# 2 - Metadata and Catalogue

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In this block:

### In this block:

* Overview data formats

* Overview container formats

* Overview protocols

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* Example SRU (2.1)

* Example data harvesting OAI-PMH (2.2)

* Example SPARQL (2.3)

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## Overview data formats

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* Dublin Core

    * set of vocabulary terms to describe digital resources

    * 15 classic metadata terms, known as the Dublin Core Metadata Element Set (DCMES)

    * [Dublin Core Metadata Initiative](http://dublincore.org/)

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* MARC

    * MARC (MAchine-Readable Cataloging) standards

        * developed in the 1960s to create records that could be read by computers and shared among libraries

    * MARC 21 MARC record format for the 21st century

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* Dublin Core Metadata Element Set (DCMES) 1.1

    1. Title: The name of the object

    2. Creator: An entity primarily responsible for making the resource

    3. Subject: The topic addressed by the work

    4. Description: An account of the resource

    5. Publisher: The agent or agency responsible for making the object available

    6. Contributor: An entity responsible for making contributions to the resource

    7. Date: The date of publication

    8. Type: The nature or genre of the resource

    9. Format: The file format, physical medium, or dimensions of the resource

    10. Identifier: String or number used to uniquely identify the object

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* Dublin Core Metadata Element Set (DCMES) 1.1

    11. Source: Objects, either print or electronic, from which this object is derived, if applicable

    12. Language: Language of the intellectual content

    13. Relation: Relationship to other objects

    14. Coverage: The spatial locations and temporal durations characteristic of the object

    15. Rights: Information about rights held in and over the resource

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## Overview container formats

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* Simple DC container XML Schema [http://www.dublincore.org/schemas/xmls/](http://www.dublincore.org/schemas/xmls/)

![simpledc xml schema](./media/simpledc.png)

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* MARCXML

    * MARCXML is an XML schema based on the common MARC21 standards

    * [http://www.loc.gov/standards/marcxml/](http://www.loc.gov/standards/marcxml/)

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## Overview protocols

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* OAI-PMH

* SRU

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``` python

```