ANSI/NIST-ITL 1-2011 - NIST Visual Image Processing Group ...

ANSI/NIST-ITL 1-2011Data Format for the Interchange of Biometric and Forensic Information* The mandatory first information item (organization name / DNM)will uniquely identify the agency, entity, or implementation used for formatting thefields in the Type-2 record. The default value for the field shall be the NorthAmerican Domain implementation (NORAM).* An optional second information item (domain version number /DVN) shall contain the unique version of the particular implementation, such as7.02.8.14 Field 1.014: Greenwich Mean Time / GMTThis optional field provides a mechanism for expressing the date and time interms of universal Greenwich Mean Time (GMT) units. If used, the GMT fieldcontains the universal date that will be in addition to the local date contained inField 1.005 (DAT). Use of the GMT field eliminates local time inconsistenciesencountered when a transaction and its response are transmitted between twoplaces separated by several time zones. The GMT provides a universal date and24-hour clock time independent of time zones. For the exact format of this item,see the relevant encoding documents at www.biometrics.nist.gov/standard. Allencodings contain the following data:• “YYYY” characters represent the year of the transaction• “MM” characters shall be the tens and units values of the month• “DD” characters shall be the tens and units values of the day of themonth• “HH” characters represent the hour• “MM” the minute, and• “SS” represents the secondThe complete date shall not exceed the current date.Brad Wing 6/19/10 5:07 PMComment: reformatting and reference to theencoding document8.15 Field 1.015: Directory of character sets / DCSThis optional field is a directory or list of character sets other than 7-bit ASCII thatmay appear within this transaction.This field shall contain one or more subfields (character set definition / CSD),each with at least two information items and an optional third information item.• The first information item in each subfield (character set index / CSI)is the three-character identifier for the character set index number thatreferences an associated character set throughout the transaction file.Brad Wing 6/19/10 5:07 PMComment: reofrmatting26DRAFT 2