Presentation for ELAG 2010

1. Rewrapping your data –
Providing a tech savvy interface
to your catalogue
Helsinki June 11 2010
Markus Sköld
Senior Developer, Dept. of Audiovisual Media
National Library of Sweden
markus.skold@kb.se

2. Audiovisual
Media
• National Archive for Audiovisual
Material
• 1.5 TB ingested daily
• ~3 million hours digitally
available
• ~5 million hours available via
on-demand digitization

3. Starting point
• Functional, but not intuitive
• No searchengine indexing
• Difficult to find
• Proprietary code
• Mountains of update requests

4. What did we want?
• Clean and simple
• Like Google….
• Open Source
• Tiered architecture
• Ability to link directly to records

5. Rebuilding
Web application
Proprietary
code

6. Rebuilding
Web application

7. Rebuilding
Web application
SMDB-BUS

8. Rebuilding
EW
N Web application
XML
SMDB-BUS
Socket

9. Why XML?
• Reformat data
• Complex structure
• Easy to handle
• Keep all nuances
photo: http://www.flickr.com/photos/intvgene/370973576/

10. Query Translator
BRS Query: ”Inglourious Basterds”.TIT.

11. Query Translator
”Google-Like”: title:”Inglourious Basterds”
BRS Query: ”Inglourious Basterds”.TIT.

12. Query Translator
CQL: dc.title = ”Inglourious Basterds”
”Google-Like”: title:”Inglourious Basterds”
BRS Query: ”Inglourious Basterds”.TIT.

13. One response
XML

14. One response
XML
+XSLT

15. One response
XML
+XSLT
=whatever

17. Sorting Filter results
Statistics on your search
Tips
Discovery.
Scrollable results

18. Cool URIs don’t change
–Tim Berners-Lee
http://smdb.kb.se/resource/id/<number>
One unique URI for every record

20. > 55% traffic from Google
> 20% from referral (e.g.Wikipedia)

21. Open APIs
•SOAP
•REST
‣ XML
‣ JSON/JSONP
•SRU
http://www.flickr.com/photos/lofink/4344960203/

22. Linked Open Data

23. Harvesting links through open APIs

24. Harvesting links through open APIs

26. Content Negotiation
http://smdb.kb.se/resource/id/002573900
=>HTTP 303

27. http://smdb.kb.se/catalog/id/002573900

28. http://smdb.kb.se/catalog/id/002573900.rdf

29. Simplicity is the ultimate
sophistication
— Leonardo da Vinci