{
  "id": "bbg-p0063-architecture-source-map-architecture-source",
  "title": "PostgreSQL Process Architecture",
  "chapter": "database-foundations",
  "batch": "06",
  "rank": 52,
  "sourcePage": 63,
  "sourcePointer": "p. 63",
  "status": "accepted",
  "reviewerStatus": "reviewed",
  "fidelityScore": 0.9,
  "canvas": {
    "width": 960,
    "height": 640
  },
  "fireworksTechGraph": {
    "style": "style-1-flat-icon",
    "diagramType": "architecture",
    "topologyNotes": [
      "source page render inspected",
      "extracted page text inspected",
      "preserve coarse grouping, sequence, and hierarchy from the inspected candidate page",
      "short generic labels only"
    ],
    "publicBoundary": [
      "original vector output",
      "no source pixels",
      "no source mark or long wording"
    ]
  },
  "callouts": [],
  "sourceReview": {
    "conceptAnchors": [
      "concept: Database",
      "concept: Architecture",
      "concept: Architecture Source Map"
    ],
    "labelSource": "source-summary",
    "semanticStatus": "reviewed"
  },
  "groups": [
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      "id": "clients",
      "label": "Clients",
      "x": 48,
      "y": 142,
      "w": 174,
      "h": 276
    },
    {
      "id": "processes",
      "label": "Server processes",
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      "y": 120,
      "w": 398,
      "h": 320
    },
    {
      "id": "storage",
      "label": "Memory and files",
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  ],
  "shapes": [
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      "y": 224,
      "w": 82,
      "h": 90,
      "tone": "blue"
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    {
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      "label": "Postmaster",
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      "y": 154,
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    },
    {
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      "tone": "green"
    },
    {
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      "tone": "purple"
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      "label": "WAL writer",
      "detail": "durability",
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      "y": 312,
      "w": 112,
      "h": 62,
      "tone": "red"
    },
    {
      "id": "memory",
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      "h": 82,
      "tone": "teal"
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      "id": "files",
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      "label": "Data and WAL",
      "detail": "files",
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      "y": 330,
      "w": 112,
      "h": 82,
      "tone": "gray"
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