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Madrid, 24 September 2008

ARCA Accessing federated multimedia content. Madrid, 24 September 2008. Starting point. UNIB-TV. UNID-TV. UNIA-TV. UNIC-TV. Network. Requirements. Across several institutions Types of content: live video streaming, VoD and podcast Via WWW Updated data (changes in scheduler or VoD)

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Madrid, 24 September 2008

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  1. ARCA Accessing federated multimedia content Madrid, 24 September 2008

  2. Starting point UNIB-TV UNID-TV UNIA-TV UNIC-TV Network

  3. Requirements • Across several institutions • Types of content: live video streaming, VoD and podcast • Via WWW • Updated data (changes in scheduler or VoD) • Flexibility to allow each university to change the scheduler and contents without the obligation of warning administrators of the service

  4. Requirements • The organization responsible of the content has to be the owner. He has to have the possibility to choose what is published or not. • A minimal effort of management and maintenance • Compatible with the publication by other ways • Manage several formats • Catalogation using: • UNESCO codes for science and technology • Categories used by Spanish Ministry of Education

  5. Centralized model VIDEO METADATA

  6. Centralized model • Pros: • Uniformity in formats and codecs • Ensure the media • Ensure the avability of service • Cons: • Host the media • Recode the media to our servers • Deal with end users • Responsability over the content

  7. Federation

  8. Situation ARCA Services portal over all the contents IPTV institutional portal Very few universities (PuMuKIT) Content production Some universities All universities Networks

  9. Federation Ourproposal: ARCA

  10. ARCA federation • Developed by University Carlos III of Madrid • Service provided by RedIRIS • Open to all institutions • In this stage all content is public • Independence of institutional repository and the federated one. • The model is suitable to the organization’s way of working • Harvest metadata using secure links: SSL • Common languaje for data exchange: RSS 2.0 (with namespaces used in commercial services)

  11. ARCA • RSS 2.0 • Widely used • Known by universities service administrators • Powerful enough for our purpose • Easy validation • Easy to extend • Namespaces: • Yahoo media: MRSS: describe multimedia content (media:group, media:credit, media:thumbnail …) • Itunes: podcast • Google base events rss: localize events in time and space (g:event_date_range, g:location)

  12. ARCA • Formats supported: • Windows media • Real • Mp4 • Quicktime • Mp3 • Flash • Languages supported (Spanish, Catalan, Galician, Basque and English)

  13. ITUNES ARCA service model STREAMING SEARCH HTTP Server METADATA Streaming Server PUSH LIVE SEARCH METADATA RSS PUSH Learning tool, blog … ARCA METADATA REUSE Streaming Server HTTP Server CONTENT DOWNLOAD

  14. ARCA facts • Members • 12 Universities • 1 cultural institution • 2 networks • 10000 elements • 6726 hours

  15. ARCA future • Lastest version defines ARCA own namespace • Series • Attach documents • Federated authentication

  16. http://arca.rediris.es Edificio Bronce Plaza Manuel Gómez Moreno s/n 28020 Madrid. España Tel.: 91 212 76 20 / 25 Fax: 91 212 76 35 www.red.es

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