Health Data Platform Metadata Challenge


The W3C has a number of standard vocabulary recommendations for Linked Data publishers, defining cross domain semantic metadata of open government data, including concept schemes , provenance , statistics , organizations , people , data catalogs and their holdings , linked data assets , and geospatial data, in addition to the foundational standards of the Web of Data (such as HTTP, XML, RDF and various serializations, SPARQL, OWL, etc). Other voluntary consensus standards development organizations are also making valuable contributions to open standards for Linked Data publishers, such as the emerging GeoSPARQL standard from the Open Geospatial Consortium .

In some cases, the entities and relations in these vocabulary standards are expressed using UML class diagrams as an abstract syntax, then automatically translated into various concrete syntaxes like XML Schemas and RDF Schemas , which also makes many of the standards from the Object Management Group easy to express as RDF Schemas, such as those that describe business motivation (including but not limited to vision, mission, strategies, tactics, goals, objectives), service orientation , process automation , systems integration , and other government specific standards . Oftentimes there exist domain specific standards organizations, with standards products that express domain specific entities and relations, such as those for the health or environmental sectors . The PMO has recently stood up a site to collect these standards when expressed as RDF Schemas for use by the growing community of Government Linked Data publishers, which includes HHS/CMS, EPA, DOE/NREL, USDA, and the Library of Congress.

The challenge winner will demonstrate the application of voluntary consensus and de facto cross domain and domain specific standards, using as many of the HHS datasets available on as possible. 

There are two objectives:
-Apply existing standards as RDF Schemas from voluntary consensus standards organizations (W3C, OMG, OGC, etc.) for expressing cross domain metadata that is common to all open government data.
-Design new HHS domain specific metadata based on the data made available on where no RDF Schema is otherwise given or available.

When designing new metadata expressed as RDF Schemas, designers should:
-Leverage existing data dictionaries expressed as natural language in the creation of new conceptual schemas, as provided by domain authorities;
-Observe best practices for URI’s schemes that is consistent with work (such as the Clinical Quality ------Linked Data release from HDI 2011); and
-Organize related concepts into small, compose-able component vocabularies.
-Turtle syntax for RDFS and RDF is preferred. The contributed code will be given an open source license and managed by HHS on, with copyright and attribution to the developer(s) as appropriate, and will ideally be used to populate


Competition Organizer

ONC/Health 2.0

*Available in all states*

Submission Date


Awards Date


Total Prize Cash (US Dollars)


Competition Category
  • Graduate - All U.S.
  • Undergraduate - All U.S.
  • Business - All U.S.
  • Social Entrepreneurship
  • Technology - Other
  • Women or Minority-owned
  • Specialized Industries
  • Virtual/Online
Who's Eligible

To be eligible to win a prize under this challenge, an individual or entity: (a) Shall have registered to participate in the competition under the rules promulgated by the Office of the National Coordinator for Health Information Technology; (b) Shall have complied with all the requirements under this section; (c) In the case of a private entity, shall be incorporated in and maintain a primary place of business in the United States, and in the case of an individual, participating in a group, shall be a citizen or permanent resident of the United States and 18 years old or older as of the time of entry; and (d) May not be a Federal entity or Federal employee acting within the scope of their employment. An individual or entity shall not be deemed ineligible because the individual or entity used Federal facilities or consulted with Federal employees during a competition if the facilities and employees are made available to all individuals and entities participating in the competition on an equitable basis. Employees of Sponsor, Administrator, each of their affiliates, and/or any other individual or entity associated with the development, evaluation, or administration of the Challenge as well as members of such persons' immediate families (spouses, children, siblings, parents), and persons living in the same household as such persons, whether or not related, are not eligible to participate in the Challenge.

Competition Prizes

First Place: $20,000 plus conference exhibition opportunity
Second Place: $10,000
Third Place: $5,000