====== 10.2 Register Node ======
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The Register Node pattern allows a [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node|Logical Node]] to announce its presence, identity, roles, capabilities, supported endpoints, supported Runtime Planes, and compatibility information.

A registering [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node|Logical Node]] provides its [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_identity|Logical Node Identity]], logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Node Roles]], supported [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_communication_endpoint|Logical Communication Endpoints]], supported [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_definition|Logical Data Structure Definitions]], lifecycle state, version information, and governance or compatibility metadata.

The registration interaction belongs primarily to the [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_control_plane|Logical Control Plane]]. It also supports the [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_health_and_observability_plane|Logical Health and Observability Plane]] when registration includes operational state, and it supports the [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_audit_and_provenance_plane|Logical Audit and Provenance Plane]] when the system records registration as [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] of participation.

Table 10-1:	Register Node logical interaction pattern
^ Element ^ Logical treatment ^
| Primary Runtime Plane | [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_control_plane|Logical Control Plane]] |
| Producing Logical Node Role | Registering Node |
| Consuming Logical Node Role | Registry, Directory, Control, or Coordination Node |
| Primary information | Node registration record |
| Supporting information | [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_identity|Logical Node Identity]], [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Logical Node Roles]], supported endpoints, lifecycle state, version metadata |
| Traceability expectation | Registration traces to [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_identity|Logical Node Identity]], [[dido:99_annexes:annex-b-terms-and-definitions:n:node_role|Node Roles]], supported endpoints, and compatibility metadata. |
| Evidence expectation | Registration record supports later review of Node participation and capability advertisement. |


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