15.4 Logical Data Structures Remain Distinct from Serialisation Formats

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A Logical Data Structure Definition describes the structure, meaning, and constraints of an information class at the platform-independent logical level. It does not represent an IDL structure, a Protocol Buffers message, a JSON Schema definition, an XML Schema definition, an Avro schema, an OpenAPI schema, a database table, an ontology class, a generated type, a file, or a wire-format payload.

Implementation profiles select data representation mechanisms that realize Logical Data Structure Definitions and Logical Data Structure Instances. The selected representation supports implementation, exchange, storage, validation, or processing. It does not redefine the logical information structure.