ISO 21849:2006 航空機と宇宙—産業データ—製品の識別とトレーサビリティ | ページ 6

3.1

alphanumeric character set

character set that contains both letters and digits and may contain special characters

[SOURCE: ISO/IEC 2382-4]

3.2

conformance class

category of data representation specified in terms of the variability allowed for the data content

3.3

data delimiter

character or set of characters which separates data elements in a string of data elements

3.4

Enterprise Identifier

code uniquely assigned to an enterprise by an issuing agency that is assigned by the registration authority of ISO/IEC 15459

3.5

forward oblique stroke

/

special character (character value 47 in ISO 646) used to separate data elements in a data string

3.6

in-service product/part

product/part for which the original manufacturing process, including application of the identification symbology, has been completed and which is no longer an asset of the manufacturer or portion of the enterprise which owns the manufacturing process

3.7

limited marking space

space available on the product/part which is insufficient for a machine-readable symbol and associated human translation representing the essential data for the conformance class

3.8

optional data

data which is not essential to provide a unique identifier for product/part identification or configuration management/control (part number), but provides supplementary information relative to the product/part

Note 1 to entry: Traceability data are an example of optional data.

3.9

syntax

set of rules defining the way in which data is put together with appropriate identifiers, delimiters, separator character(s), and other non-data characters to form messages

Note 1 to entry: Equivalent to grammar in spoken language.

3.10

Text Element Identifier

TEI

string of four characters (three upper-case alpha characters followed by a space character) that precedes a given data field and defines the data that follow