====== 4.4 Logical Meaning Before Physical Realization ======
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The architecture defines logical meaning before physical realization.

A [[dido:99_annexes:annex-b-terms-and-definitions:f:financial_node|Node]] has a [[dido:99_annexes:annex-b-terms-and-definitions:n:node_role|Node Role]] and [[dido:99_annexes:annex-b-terms-and-definitions:n:node_identity|Node Identity]] before an implementation profile decides whether it runs as a process, container, pod, virtual machine, or service. A [[dido:99_annexes:annex-b-terms-and-definitions:r:runtime_plane|Runtime Plane]] serves an architectural purpose, while an implementation profile decides whether to represent it through topic naming, DDS partitions, Kubernetes namespaces, network segmentation, or security policy.

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