acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONAnnex C: NIEM-conformant encoding rulesNormativeC.1 IntroductionThis annex contains a set of requirements for encoding the 2011 ANSI/NIST-ITL standardusing eXtensible Markup Language (XML). This annex and its references carry forward andimprove the description of XML encoding found in ANSI/NIST-ITL 2-2008, and revise theencoding specification to include additions to the 2011 base standard.This annex itemizes, references, and points to additional material such as XML schema,instance examples, and transformation data. A cross-reference to traditional encoding iscontained in Annex G: Mapping to the NIEM IEPD.Many data interchange and processing applications have converted to or are in the process ofmigrating toward an XML format approach for processing data. In order to provide theability to directly interface with such applications, this XML encoding representation of thetextual, image, and other biometric information has been developed. This is an XMLalternative to the “traditional” encoding format. Implementers will find that, with very fewexceptions, there is a “one-to-one” correspondence of XML elements to the elements of thebase specification, and to the numerically tagged (or untagged binary) traditional elementsdescribed in the Annex B: Traditional encoding. The repeating subfield and informationitems (separated by the R S and U S characters in the traditional representation) have been givennamed XML counterparts.The XML encoding rules and referenced materials conform to the National InformationExchange Model (NIEM), which facilitates interoperability for information sharing amongmultiple government agencies. The XML encoding includes rules for how user-definedextensions may be included inside the standard XML package, but do not define how thepackage may be wrapped in other XML structures.C.2 Changes in the XML encoding for ANSI/NIST-ITL 1-20111) The schema document ansi-nist.xsd, in the namespace http://niem.gov/niem/ansinist/2.0, is not used by this version of the standard. All necessary elements in ansinist.xsdhave been replaced by equivalent elements in a biometric domain filesubset/niem/domains/biometrics/1.0/biometrics.xsd, in the namespacehttp://niem.gov/niem/biometrics/1.0 , recognized by NIEM.2) The schema document itl-2008-Package-Annex-B.xsd in the namespacehttp://biometrics.nist.gov/standard/2-2008 is not used by this version of the standard.All necessary elements have been replaced by equivalent elements in the fileexchange/itl.xsd in the namespace http://biometrics.nist.gov/standard/2011 . Tofacilitate migration from the 2-2008 version to 2011, certain biometric elements in itl-2008-Package-Annex-B.xsd have been replicated both in exchange/itl.xsd and in the456