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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONWhen a data definition is introduced that causes potential problems with backwardcompatibility, it is noted in the standard. An example is the definition of ‘color space.’ SeeSection 7.7.10.3. NIEM-conformant XML encoding has inherent backward compatibilityissues due to the need to develop new schemas. See Annex C: NIEM-conformantencoding rules for details.Some fields and information items are optional in this version of the standard that weremandatory in previous versions. Examples are the second and third information items ofField 9.135: M1 friction ridge quality data / FQD. A significant change is that Field 999in Record Types 14,15, and 17 are now optional if it is indicated that the body part isamputated or unable to be captured.5.5 Character typesThe data contained in an information item may be of the following types:• A Alphabetic: 26 English letters (both upper and lower case) 15• AN Alphanumeric: Alphabetic and numeric 1 2 3 4 5 6 7 8 9 0• ANS Alphanumeric and special characters that are specifically stated in thedescription of the data (such as period or comma)• AS Alphabetic and special characters that are specifically stated in thedescription of the data (such as period or comma)• B Binary for Traditional encoding (See Annex B: Traditional encoding) orBase64 for XML (See Annex C: NIEM-conformant encoding rules)• Base64 Base-64 encoded (exclusively)• H Hexadecimal representation: 0 1 2 3 4 5 6 7 8 9 A B C D E F• N Numeric: 1 2 3 4 5 6 7 8 9 0• NS Numeric with special characters that are specifically stated in the descriptionof the data (such as period or comma)• U Unicode characters: Latin and extended Latin characters like ü, Ñ, ç, Þ, ß,ł, ặ, and special characters like ₤, €, , +, * , ‡, and non-Latin characterslike ㆇ, ๐ཏ, ᐂ, Ⴤ, ж, ઍ, 句 , ע , , and の.At the beginning of each Section describing the contents of a record type, there is a tablelisting the layout for that record type. Each data location in the tables lists the charactertype, the minimum and maximum number of characters, the data constraints, and thenumber of times that it may appear.5.6 Character encodingت15[2013n>] Note that the code definition for 'Alphabetic' is modified to not include spaces.Spaces are listed as Special Characters (code S) in the two fields affected: 10.023 and 10.026.This was done to conform to the standard programming definition of alphabetic charactersbeing limited to the letters of the English alphabet. The character codes in Table 58 Type-10record layout for these two fields were changed to AS, with the special character listed as aspace. [