{
  "graphId": "atlas.observer_grammar.v0_1",
  "title": "Observer Grammar",
  "description": "The shared descriptive sequence used to document an observer from phenomenon through claim boundary.",
  "version": "v0.1",
  "nodes": [
    {
      "id": "phenomenon",
      "label": "Phenomenon",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The physical, computational, conceptual, or unknown subject being observed.",
      "claimBoundary": "The phenomenon is distinct from its representation.",
      "links": [],
      "tags": ["source"]
    },
    {
      "id": "field",
      "label": "Field",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The carrier or structure through which the phenomenon is expressed.",
      "claimBoundary": "A declared field model is not a broad physical conclusion.",
      "links": [],
      "tags": ["carrier"]
    },
    {
      "id": "transport",
      "label": "Transport",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The declared evolution or propagation toward an observer.",
      "claimBoundary": "Implemented transport and analogy must remain distinct.",
      "links": [],
      "tags": ["propagation"]
    },
    {
      "id": "interaction",
      "label": "Interaction",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The event at the sensing boundary or interaction region.",
      "claimBoundary": "Selection effects and losses remain explicit.",
      "links": [],
      "tags": ["boundary"]
    },
    {
      "id": "receiver",
      "label": "Receiver",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The biological, optical, instrumental, or computational component that records an interaction.",
      "claimBoundary": "Shared receiver vocabulary does not imply shared mechanisms.",
      "links": [],
      "tags": ["detector"]
    },
    {
      "id": "measurement",
      "label": "Measurement",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The recorded quantity with declared units, range, calibration, and channel semantics.",
      "claimBoundary": "Different measurement channels require an explicit comparison basis.",
      "links": [],
      "tags": ["channel"]
    },
    {
      "id": "artifact",
      "label": "Artifact",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The persistent object that preserves the measurement or its representation.",
      "claimBoundary": "An artifact preserves evidence within its recorded provenance and scope.",
      "links": [],
      "tags": ["evidence"]
    },
    {
      "id": "interpretation",
      "label": "Interpretation",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The stated reasoning that connects an artifact to a bounded conclusion.",
      "claimBoundary": "Direct reading, inference, analogy, and speculation remain labeled.",
      "links": [],
      "tags": ["reasoning"]
    },
    {
      "id": "claim_boundary",
      "label": "Claim Boundary",
      "type": "grammar_node",
      "category": "observer_grammar",
      "maturity": "Not Applicable",
      "description": "The explicit supported, inferred, and unknown limits of the entry.",
      "claimBoundary": "No observer entry is complete without this boundary.",
      "links": [
        {
          "label": "Observer Grammar",
          "href": "../observer_grammar.md"
        }
      ],
      "tags": ["claims"]
    }
  ],
  "edges": [
    {
      "id": "phenomenon_describes_field",
      "from": "phenomenon",
      "to": "field",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "field_describes_transport",
      "from": "field",
      "to": "transport",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "transport_describes_interaction",
      "from": "transport",
      "to": "interaction",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "interaction_describes_receiver",
      "from": "interaction",
      "to": "receiver",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "receiver_describes_measurement",
      "from": "receiver",
      "to": "measurement",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "measurement_describes_artifact",
      "from": "measurement",
      "to": "artifact",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "artifact_describes_interpretation",
      "from": "artifact",
      "to": "interpretation",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    },
    {
      "id": "interpretation_describes_claim_boundary",
      "from": "interpretation",
      "to": "claim_boundary",
      "relationship": "describes",
      "label": "describes",
      "claimBoundary": "Sequence describes structure, not causation."
    }
  ],
  "groups": [
    {
      "id": "observer_grammar_sequence",
      "label": "Observer Grammar Sequence",
      "description": "All required grammar nodes in descriptive order.",
      "nodeIds": [
        "phenomenon",
        "field",
        "transport",
        "interaction",
        "receiver",
        "measurement",
        "artifact",
        "interpretation",
        "claim_boundary"
      ]
    }
  ],
  "claimBoundary": "Shared grammar does not imply shared physics or measurement equivalence.",
  "evidence": [
    {
      "label": "Atlas Constitution",
      "reference": "Docs/Observatory/Observation_Atlas/ATLAS_CONSTITUTION.md",
      "kind": "repository_doc"
    },
    {
      "label": "Observer Grammar",
      "reference": "Docs/Observatory/Observation_Atlas/observer_grammar.md",
      "kind": "repository_doc"
    }
  ],
  "renderHints": {
    "direction": "LR",
    "layout": "flowchart",
    "showGroups": false,
    "preferredLabel": "Observer Grammar"
  }
}