4.5 Explicit Information Structures [Dido Solutions, Inc Wiki]

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====== 4.5 Explicit Information Structures ======
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The Logical Architecture defines information exchange through logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_definition|Data Structure Definitions]] and logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_instance|Data Structure Instances]].

Logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_definition|Data Structure Definitions]] identify the structure, meaning, and constraints of information classes at the PIM level. Logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_instance|Data Structure Instances]] represent populated occurrences that Nodes exchange, record, interpret, validate, or use as [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]].

The Logical Architecture does not prescribe IDL, Protocol Buffers, JSON Schema, XML Schema, Avro, OpenAPI, database schemas, ontology classes, or generated language types. Later implementation profiles select those representations.

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