1 Scope
This part of ISO 20022 describes the transformation rules to generate ASN.1 abstract syntax from an ISO 20022 compliant MessageDefinition. The generated abstract syntax is for the description
and validation of Messages.
The transformation rules are a transformation from Level 3 to Level 4. It is a deterministic
transformation, meaning that the resulting ASN.1 is completely predictable for a given
MessageDefinition. There is neither manual input to the transformation itself nor
manual adjustment to the result of the transformation.
This part of ISO 20022 is the ASN.1 equivalent of ISO 20022‑4 . In ISO 20022‑4 the abstract syntax generated is XML Schema; in this part of ISO 20022 it is ASN.1. In ISO 20022‑4 the only encoding supported is UTF-8 XML; in this part there are multiple encodings
supported for ASN.1. These include all the standard encodings, but in addition the
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