Discovering Implicit Schemas in JSON Data

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Slides of the paper "Discovering Implicit Schemas in JSON Data" at International Conference on Web Engineering 2013 (ICWE'13)

Slides of the paper "Discovering Implicit Schemas in JSON Data" at International Conference on Web Engineering 2013 (ICWE'13)

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  • apis everywhere
  • apis everywhere
  • http://blog.programmableweb.com/2011/05/25/1-in-5-apis-say-bye-xml/
  • http://blog.programmableweb.com/2011/05/25/1-in-5-apis-say-bye-xml/
  • http://blog.programmableweb.com/2011/05/25/1-in-5-apis-say-bye-xml/Change range
  • Real experience
  • Possible structure
  • http://blog.programmableweb.com/2011/05/25/1-in-5-apis-say-bye-xml/
  • Emphasis on proposal
  • Grammar-model world
  • Importance of this step
  • Importance of this step
  • Importance of this step
  • Importance of this step

Transcript

  • 1. Discovering Implicit Schemas in JSON Data Javier Luis Cánovas Izquierdo, Jordi Cabot {javier.canovas,jordi.cabot}@inria.fr ICWE Conference July 2013
  • 2. APIs everywhere
  • 3. APIs everywhere
  • 4. flickr/FortMeade Format War
  • 5. flickr/FortMeade Format War XML vs. JSON
  • 6. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2009 2010 2011 2012 2013 JSON-based API XML-based API Source: ProgrammableWeb.com XML vs. JSON
  • 7. flickr/Eleaf
  • 8. Also called JavaScript Object Notation, is a text- based open standard designed for human- readable data interchange. It is derived from the JavaScript scripting language for representing simple data structures and associative arrays, called objects. Despite its relationship to JavaScript, it is language-independent, with parsers available for many languages. JSON (/ˈdʒeɪsɒn/ jay-sawn, /ˈdʒeɪsən/ jay- sun) Source: Wikipedia
  • 9. Also called JavaScript Object Notation, is a text- based open standard designed for human- readable data interchange. It is derived from the JavaScript scripting language for representing simple data structures and associative arrays, called objects. Despite its relationship to JavaScript, it is language-independent, with parsers available for many languages. JSON (/ˈdʒeɪsɒn/ jay-sawn, /ˈdʒeɪsən/ jay- sun) … and it is schemaless
  • 10. flickr/jean-louis zimmermann Example
  • 11. flickr/Mads Boedker Our proposal
  • 12. Discovery of schemas in JSON
  • 13. Creation Refinement
  • 14. Creation Refinement C1 C2 C3 C4 C5
  • 15. R1 R2 R3 Creation Refinement
  • 16. Creation Refinement
  • 17. M1 M2 M3 M4
  • 18. Discovering dependencies
  • 19. Implementation
  • 20. Not enough… • Allowing developers to enrich the partial schemas • Ideas from database normalization theory and XML-based approaches Improve discovery process • Some metrics: effectiveness, coverage, etc. Evaluate the discovery process • Automatize the generation of documentation • Identifying use patterns in the JSON-based API Promote JSON-based APIs • Generation of mash-ups • …others? Additional uses
  • 21. Check it out! https://code.google.com/a/eclipselabs.org/p/json-discoverer/ Except where otherwise noted, content on this presentation is licensed under a Creative Commons Attribution 3.0 License. Do you wanna try?