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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSION99 records shall always be observed. The “ U S” separator shall separate multiple items withina field or subfield; the “ R S” separator shall separate multiple subfields, and the “ G S” separatorshall separate information fields. The following is a detailed description of the separatorcharactersFN is the number of a field (including record type) within a record, other than Types 4, 7or 8.IFIISFFSis the information field associated with an FN.is the information item belonging to an IF.is the subfield used for one or more 190 entries of an II or an IF.File separator character – separates logical records within a transaction. (Decimalvalue 28)GS Group separator character – separates fields within a record. (Decimal value 29).RSRecord separator character – separates repeated subfields within a field. (Decimalvalue 30)US Unit separator character – separates information items within a field or subfield 191 .(Decimal value 31).The G S is used between fields – the F S between logical records:FN j : IF G S FN k : … F SFN 1 : IF G FS … SFor fields with more than one information item, the S Uis used:FN j : II a S U II b G SFN k … SF 192For subfields: repeating sets of information items:If subfield count > 1:FN j : II U a S… II R b SII Ua SIf subfield count = 1:FN : II Ua S… II bGSFor subfields: repeating values:If subfield count > 1:...II bGS190[2013e>] Coreected from 'multiple' since some fields such as Field 10.026: Subject facialdescription / SXS may have only one subfield present. [] This separator is also used to delimit repeating values in a subfield. [ Text on subfields expanded for clairity. [