This document provides a formal means to achieve consistency in the use of ASN.1 when specifying data types that are to be used in ITS International Standards. This is designed to ensure unambiguous and interoperable data exchange while providing consistent documentation of these exchanges. This document provides the necessary specifications to ensure consistent interpretation by providing formal references to several standards and in some cases specifying additional rules to promote greater consistency among standards.<\/p>\n
This document does not require the use of ASN.1 for anything other than providing data type definitions in a common and flexible form. This document makes specific provision for the support of:<\/p>\n
Embedding other extant standardised encoding formats, e.g. jpg, while maintaining interoperability and reuse within ITS;<\/p>\n<\/li>\n
Allowing alternative representations of data type definitions, e.g. XML schema;<\/p>\n<\/li>\n
Allowing alternative encoding of defined data.<\/p>\n<\/li>\n<\/ul>\n
The rules presented in this document enable data types to be recorded in a common ITS data registry, and in ITS International Standards, in a common and consistent form.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4 Abbreviated terms <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5 Requirements 5.1 General requirements 5.1.1 Use of ASN.1 is mandatory 5.1.2 Consistency with the CIDCR <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5.1.3 Limited use of OCTET STRING 5.1.4 ASN.1 historical name 5.2 Encoding rules 5.3 Module definitions 5.3.1 General requirements <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.3.2 Conformance 5.3.3 Name 5.3.4 Identification 5.3.5 Tag default <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.3.6 Version and revision 5.4 Data type assignments 5.4.1 General 5.4.2 Message versioning 5.4.3 Contents of message or aggregate domain <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.4.4 Reference style in NamedTypes 5.4.5 Comments 5.4.6 Version Control of data types <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex A (normative) ASN.1 module <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Annex B (normative) Data concept definitions <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Intelligent transport systems. Reference model architecture(s) for the ITS sector – Use of ASN.1<\/b><\/p>\n |