Open Data: Designing Data-centric Web APIs

Location: Mission City M
Average rating: ****.
(4.58, 12 ratings)

Challenges around open data come in various angles, from licensing to provenance to change management. We focus on one in particular: how to create Web APIs for open data that encourage new creative uses of data sets and do not get in the way.

In this session we’ll discuss key aspects of data-centric service interfaces, such as the huge power of simply applying HTTP and URLs to address parts of data sets with the appropriate granularity, the tough balance between allowing clients to ask very specific questions and ensuring that servers can still take the load, and how uniformity in data service interfaces across the industry can bring a huge opportunity to the table.

During the session we’ll share our various experiences designing the Open Data Protocol (, where we have many examples of ideas that worked great, of ideas that did not work at all, and of live services that have been using the protocol for a while to share data on the Web.

Photo of Pablo Castro

Pablo Castro


Pablo is a software architect at Microsoft where he works on various topics that bring data and the Web together. He currently leads the design effort for the Open Data Protocol (OData) and is also involved on the design of the local data storage features in future versions of HTML, representing Microsoft in the WebApps working group at W3C.


  • Thomson Reuters
  • EMC Data Computing Division
  • EnterpriseDB
  • Microsoft
  • Gnip
  • Rackspace Hosting
  • IBM
  • Windows Azure MarketPlace DataMarket
  • Amazon Mechanical Turk
  • Amazon Web Services
  • Aster Data
  • Cloudera
  • Clustrix
  • DataStax, Inc. (formerly Riptano, Inc.)
  • Digital Reasoning Systems
  • Heritage Provider Network
  • Impetus
  • Jaspersoft
  • Karmasphere
  • LinkedIn
  • MarkLogic
  • Pentaho
  • Pervasive
  • Revolution Analytics
  • Splunk
  • Urban Mapping
  • Wolfram|Alpha
  • Esri
  • ParAccel
  • Tableau Software

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