Information AboutNiem |
| CATEGORIES ABOUT NATIONAL INFORMATION EXCHANGE MODEL | |
| information | |
| data management | |
| information technology | |
| iso---iec 11179 | |
| metadata | |
| metadata registry | |
| xml-based standards | |
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NIEM is based on a precisely defined Data Dictionary that uses ISO/IEC 11179 metadata registry standards. NIEM VISION The vision of the NIEM is that it will become a centralized metadata registry for federal, state and local agencies that wish to exchange data. The NIEM does not attempt to dictate that a specific data element be used in an agency-to-agency transaction. Rather it tries to serve as a central location that data element semantics can be linked. STRUCTURE OF THE NIEM The NIEM is based on a sub-class hierarchy that used Activity-Organization-Person and related structures as an Upper Ontology . Each Data Element in the NIEM Ontology is classified as either a class-type or a property-type. NIEM CLASSIFICATION SCHEMES Almost all NIEM data element properties have a Representation Term associated with them. For example all Boolean (true/false) data elements end with the suffix Indicator (metadata) . All NEIM data elements are Classified according to following categories:
The NIEM is an outgrowth of the U.S. Department of Justice's Global Justice XML Data Model (GJXDM) project but is now being expanded to include other federal agencies such as the Department of Health and the Department of Education. NIEM STATUS The NIEM is currently in a pre-release phase to support prototyping and pilot projects. An alpha version of the NIEM 1.0 for public review and comment is scheduled for June 30, 2006. Release history: NIEM 0.3 – April 12, 2006 NIEM 0.2.1 – February 24, 2006 NIEM 0.2 – December 23, 2005 NIEM 0.1 – October 11, 2005 SEE ALSO EXTERNAL LINKS |
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