ISO 14813-6:2017 高度道路交通システム— ITSセクターの参照モデルアーキテクチャ—パート6：ASN.1の使用 | ページ 6

3.1

ASN.1 module

module that conforms to ISO/IEC 8824-1:2015

3.2

ASN.1 data type

name of a lexical ASN.1 item, typereference, as defined in ISO/IEC 8824-1:2015, 12.2

3.3

ASN.1 data type definition

TypeAssignment declaration, as defined in ISO/IEC 8824-1:2015, 16.1

3.4

aggregate domain

data concept representing a specific syntactic grouping of data elements and/or data frames

3.5

custom extension

customization of a standardised structure to support local, regional, and/or proprietary information

3.6

data concept

abstract entity that generalizes characteristics of interest about information systems and which can be specified using a structured format composed of a set of meta-attributes

Note 1 to entry: ISO 14817-1 defines a structured format for specifying several types of data concepts. The minimum required meta-attributes include a name, a definition, an object identifier, and a data concept type.

Note 2 to entry: Information systems frequently need to exchange messages. The atomic unit of a message is called a data element. A data element is a single property of an object class expressed using a specific (atomic) representation called a value domain. The concepts of “message”, “data element”, “object class”, “property”, and “value domain” (among others) are data concepts.

3.7

data element

data concept representing a single property about an object class and which is represented using a specific and atomic value domain, i.e. a representational form that uses a basic ASN.1 data type

3.8

data frame

data concept represented by a specific aggregate domain and that describes information of interest through a useful grouping of more atomic properties about one or more object classes

[SOURCE:ISO 14817-1:2015, 4.18]

3.9

data type

domain of values

Note 1 to entry: This is synonymous with the term “type”, as defined in ISO/IEC 8824-1:2015.

3.10

data unit

data structure that is a logical unit of interchange between peer entities

3.11

ITS data concept

any data concept specified or referenced by an ITS International Standard or otherwise managed or stored in the CIDCR

Note 1 to entry: Data concepts are often specified for data exchange, but may also be specified for encoding and local storage, encoding followed by encrypting or hashing, or other purposes.

3.12

ITS International Standard

any standard developed by ISO/TC 204

3.13

message

data concept that is a grouping of data elements, data frames, or data elements and data frames that is used to convey a complete set of information

[SOURCE:ISO 14817-1:2015, 4.35, modified – the Note 1 to entry is deleted.]

3.14

MIB

Module that conforms to IETF RFC 2578

3.15

module

data concept that contains the formal syntactic definition, and optionally the semantic definition, of a defined set of other data concepts that are all version-controlled as a single unit; a module can be represented in multiple languages (e.g., ASN.1 or XML Schema) and compiled by computer systems

[SOURCE:ISO 14817-1:2015, 4.40]

3.16

module identifier

instance of an object identifier data type used to identify a module

3.17

non-ASN.1 data type

data type definition that does not conform to ISO/IEC 8824 (all parts)

3.18

object class

data concept representing a set of objects that share the same properties, relationships, and semantics

3.19

object identifier

ordered list of primary integer values from the root of the international object identifier tree to a node, which unambiguously identifies that node

[SOURCE:ISO/IEC 9834‑1:2012, 3.5.11]

3.20

value domain

data concept representing a defined data type