Thursday, May 1, 2008

National Data Model

The National Center for Education Statistics (NCES) has developed a conceptual data model for the pK12 domain. Its primary goal is to generate dialog regarding the collection, movement, and use of data within the education system among a broad set of constituents.
Vince Paredes, SIFA's Data Model Architect, has been involved in this project extensively. At various presentations Vince has mentioned that he was initially unsure as to whether or not this type of model could be built. After evaluating different techniques the team settled on the use of a semantic approach to constructing the model. Semantic models provide rich context for data elements, implementing relationships as "first class" objects.
The data model site provides background information on the data model and includes an online viewer. You may also download the data model from the site and utilize tools like Protege and Swoop for detailed analysis and manipulation. Development of the model took place using the Web Ontology Language (OWL). At this time the data model cross-references to the NCES handbooks, but not to the SIF Data Model.

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