ISO ISO IEC 8824-4-2021 pdf free download – Information technology — Abstract Syntax Notation One (ASN.1) — Part 4: Parameterization of ASN.1 specifications.
This Recommendation | International Standard is part of Abstract Syntax Notation One (ASN.1) and defines notation forparameterization of ASN.1 specifications.
2Normative references
The following Recommendations and International Standards contain provisions which, through reference in this text,constitute provisions of this Recommendation / International Standard. At the time of publication, the editions indicatedwere valid.All Recommendations and Standards are subject to revision,and parties to agreements based on thisRecommendation | International Standard are encouraged to investigate the possibility of applying the most recent editionof the Recommendations and Standards listed below.Members of lEC and IS0 maintain registers of currently validInternational Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently validITU-T Recommendations.
2.1 ldentical Recommendations | International Standards
Recommendation ITU-T X.680 (2021)| ISOIEC 8824-1:2021 , lnformation technology- Abstract SyntaxNotation One (ASN.1): Specification of basic notation.
Recommendation ITU-T X.681 (2021)|ISO/IEC 8824-2:2021, Information technology -Abstract SyntaxNotation One (ASN.1 ): Information object specification.
Recommendation ITU-TX.682 (2021)| ISO/IEC 8824-3:2021,Information technology -Abstract SyntarNotation One (ASN.1): Constrain specification.
NOTE – The references above shall be interpreted as references to the identified Recommendations | International Standardstogether with all their published amendments and technical corrigenda.
3Definitions
For the purposes of this Recommendation | International Standard, the following definitions apply.
3.1Specification of basic notation
This Recommendation | International Standard uses the terms defined in Rec.ITU-T X.680 | ISOIEC 8824-1.
3.2 Information object specification
This Recommendation | International Standard uses the terms defined in Rec.ITU-T X.681 | ISOIEC 8824-2.
3.3Constraint specification
This Recommendation | International Standard uses the terms defined in Rec.ITU-T X.682| ISO/IEC 8824-3.
3.4Additional definitions
3.4.1normal reference name: A reference name defined, without parameters, by means of an “Assignment” otherthan a “ParameterizedAssignment”. Such a name references a complete definition and is not supplied with actualparameters when used.
3.4.2parameterized reference name: A reference name defined using a parameterized assignment,whichreferences an incomplete definition and which, therefore, must be supplied with actual parameters when used.
3.4.3 parameterized type: A type defined using a parameterized type assignment and thus whose components areincomplete definitions which must be supplied with actual parameters when the type is used.
3.4.4parameterized value: A value defined using a parameterized value assignment and thus whose value isincompletely specified and must be supplied with actual parameters when used,
3.4.5parameterized value set: A value set defined using a parameterized value set assignment and thus whosevalues are incompletely specified and must be supplied with actual parameters when used.
3.4.6parameterized object class: An information object class defined using a parameterized object class assignmentand thus whose field specifications are incompletely specified and must be supplied with actual parameters when used.3.4.7parameterized object: An information object defined using a parameterized object assignment and thus whosecomponents are incompletely specified and must be supplied with actual parameters when used.
3.4.8parameterized object set: An information object set defined using a parameterized object set assignment andthus whose objects are incompletely specified and must be supplied with actual parameters when used.
3.4.9variable constraint: A constraint employed in specifying a parameterized abstract syntax, and which dependson some parameter of the abstract syntax.
4
Abbreviations
For the purposes of this Recommendation | International Standard, the following abbreviation applies:
ASN.1 Abstract Syntax Notation One
5
Convention
This Recommendation | International Standard employs the notational convention defined in Rec.ITU-T X.680 lISO/IEC 8824-1, clause 5.
Notation
This clause summarizes the notation defined in this Recommendation | International Standard.
6.1Assignments
The following notation which can be used as an alternative for “Assignment” (see Rec.ITU-T X.680|ISO/EC 8824-1,clause 13) is defined in this Recommendation [ International Standard:
-ParameterizedAssignment (see 8.1).ISO ISO IEC 8824-4 pdf download.