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Open Data Workshop:
  The Rijksmuseum
 Hacking Experience




 Lizzy Jongma & Inge Giesbers
Our data is open!

     Did you know the
       Rijksmuseum
                         Yes, you can
       opened their
                        harvest it with
           data ?
                          their API !
Why open data?
• E-strategy
• Institutional values:
  authentic, quality, personal,
  innovative, simplicity
• Mission: ‘The Rijksmuseum
  connects people, Art and History’
• Interaction with the public
And what about the images?
Why now?
• Open Cultuur Data
• Apps voor Nederland
• Europeana
What did it take?
• An API (Application Programming Interface)
• Registration of copyright data
• Selection of copyrightfree objects


  …. And a room full of nerds
Copyright project
•   Unknown territory
•   No fields for registration
•   Comparative research
•   Create awareness
How much data is open?
•   500.000 records in Adlib
•   250.000 records on our website
•   111.000 records in the API (criteria)
•   ‘CC-by’ and ‘fair use’
Further steps in copyright

• Clear copyright
• Explanation on the
  website
• Separate copyright
  agreement
API, OAI-PMH…

• From Adlib to Open
• Users and sets, sets and users
• Harvest, query, set
• LOD, RDF, DC and
  programmers…
• Back end and user support
Rijksmuseum API
What is special?
• High quality images
• CC-by license metadata
  and images
• Largest open data
  art collection
What has been archieved so far?
• 16 apps
• 207 harvests
• Kennisnet,
  ARTstor,
  Bioportaal,
  Les2.0
• Europeana
A few Examples:
Faces of the Rijksmuseum
Iconclass browser




 http://www.rijksmuseum.nl/api?lang=nl
Rijks Add notes
Rijksify
Further steps API
• Expansion of the Open Collection
• User specific sets (Golden age, portraits,
  tulips)
• Search options
• Various data formats
• Connecting to other sites and portals
• LOD, RDF
Lessons learned
•   More apps and harvests than expected
•   Much more requests and questions
    than expected
•   Positive publicity and feedback
•   No loss of income
•   No more angry colleagues (after a while)
•   Apps are difficult to integrate
•   Supprised by interest from portals and abroad
•   App contents are fun.
    Enjoy! (but don’t expect them to solve all
    your problems)

    … Don’t show explicit art to American programmers
Any questions?
Inge Giesbers (Information Specialist)
i.giesbers@rijksmuseum.nl

Lizzy Jongma (Datamanager)
l.jongma@rijksmuseum.nl