"bus factor" meaning in English

{
  "etymology_text": "From the phrase “get hit by a bus” as an informal way to describe a person suddenly becoming unavailable.",
  "forms": [
    {
      "form": "bus factors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bus factor (plural bus factors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Business",
          "orig": "en:Business",
          "parents": [
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Software engineering",
          "orig": "en:Software engineering",
          "parents": [
            "Computer science",
            "Engineering",
            "Software",
            "Computing",
            "Sciences",
            "Applied sciences",
            "Technology",
            "Media",
            "All topics",
            "Communication",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012, Brian W. Fitzpatrick, Ben Collins-Sussman, Team Geek: A Software Developer's Guide to Working Well with Others, \"O'Reilly Media, Inc.\", page 7",
          "text": "It's also important to strengthen what we call the bus factor of your project. Bus factor (noun): the number of people that need to get hit by a bus before your project is completely doomed. What's your team's bus factor?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A measurement of the risk of losing team members, in terms of information and abilities no longer available to the team."
      ],
      "id": "en-bus_factor-en-noun-JM~~VOj6",
      "links": [
        [
          "business",
          "business"
        ],
        [
          "software engineering",
          "software engineering"
        ],
        [
          "measurement",
          "measurement"
        ],
        [
          "risk",
          "risk"
        ],
        [
          "team",
          "team"
        ],
        [
          "member",
          "member"
        ]
      ],
      "raw_glosses": [
        "(business, originally software engineering) A measurement of the risk of losing team members, in terms of information and abilities no longer available to the team."
      ],
      "topics": [
        "business"
      ]
    }
  ],
  "word": "bus factor"
}

{
  "etymology_text": "From the phrase “get hit by a bus” as an informal way to describe a person suddenly becoming unavailable.",
  "forms": [
    {
      "form": "bus factors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bus factor (plural bus factors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Business",
        "en:Software engineering"
      ],
      "examples": [
        {
          "ref": "2012, Brian W. Fitzpatrick, Ben Collins-Sussman, Team Geek: A Software Developer's Guide to Working Well with Others, \"O'Reilly Media, Inc.\", page 7",
          "text": "It's also important to strengthen what we call the bus factor of your project. Bus factor (noun): the number of people that need to get hit by a bus before your project is completely doomed. What's your team's bus factor?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A measurement of the risk of losing team members, in terms of information and abilities no longer available to the team."
      ],
      "links": [
        [
          "business",
          "business"
        ],
        [
          "software engineering",
          "software engineering"
        ],
        [
          "measurement",
          "measurement"
        ],
        [
          "risk",
          "risk"
        ],
        [
          "team",
          "team"
        ],
        [
          "member",
          "member"
        ]
      ],
      "raw_glosses": [
        "(business, originally software engineering) A measurement of the risk of losing team members, in terms of information and abilities no longer available to the team."
      ],
      "topics": [
        "business"
      ]
    }
  ],
  "word": "bus factor"
}