{
  "id": "redundancy.engineering",
  "term": "redundancy",
  "sense": "engineering",
  "pos": "noun",
  "status": "review",
  "level": 12,
  "arena": "engsys",
  "domain": "engineering",
  "style": "window",
  "definition": "A second system whose parameter has a window that overlaps the first, so that drift in the parameter can leave one window while remaining in the other.",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "window.range",
      "drift.aimless",
      "parameter.condition",
      "second.temporal",
      "time.dimension",
      "system.organized"
    ],
    "interaction": "Two organized systems maintain function through parameter drift because a parameter can leave the range of the first but remain within the range of the second, enabled by temporal succession and overlapping windows in time.",
    "novel_properties": [
      "overlapping tolerance bands",
      "continuous functionality despite drift",
      "temporal system succession"
    ]
  },
  "examples": [
    {
      "text": "The Hubble Space Telescope's gyroscopes include backup units that activate when primary gyro drift exceeds operational thresholds.",
      "domain": "engineering"
    },
    {
      "text": "The human body maintains blood pH between 7.35 and 7.45, with kidneys and lungs providing overlapping regulatory mechanisms.",
      "domain": "biology"
    },
    {
      "text": "Amazon Web Services routes traffic through multiple availability zones, each with independent power and cooling systems.",
      "domain": "computing"
    }
  ],
  "relations": [],
  "used_by": [],
  "forms": [
    "redundancy"
  ],
  "closed": false,
  "provenance": {
    "author": "retrofit:qwen/qwen3-235b-a22b-2507",
    "date": "2026-07-29",
    "confidence": 0.8,
    "sources": [
      "Sample/hundred-words-six-terms.md"
    ],
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "components",
      "note": "Removed 'first.order' and 'leave.movement' — not essential to the definition's core logic. Added 'second.temporal', 'time.dimension', and 'windows.opening' to ground the notion of a 'second system' an"
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-redundancy.engineering"
}