"Pournelle chart" meaning in English

{
  "etymology_text": "Developed by American science fiction writer Jerry Pournelle in his 1963 dissertation in political science.",
  "forms": [
    {
      "form": "Pournelle charts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pournelle chart (plural Pournelle charts)",
      "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"
        },
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          "name": "English entries with language name categories using raw markup",
          "parents": [
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          "source": "w"
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          "parents": [
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          "source": "w"
        }
      ],
      "glosses": [
        "A chart plotted on two axes — \"attitude toward the state\" and \"attitude toward planned social progress\" — used to visualize a person's political philosophy."
      ],
      "id": "en-Pournelle_chart-en-noun-IsA-w1lW",
      "links": [
        [
          "axes",
          "axis"
        ],
        [
          "visualize",
          "visualize"
        ],
        [
          "political",
          "political"
        ],
        [
          "philosophy",
          "philosophy"
        ]
      ],
      "related": [
        {
          "word": "Nolan chart"
        },
        {
          "word": "Vosem chart"
        }
      ],
      "wikipedia": [
        "Jerry Pournelle",
        "Pournelle chart"
      ]
    }
  ],
  "word": "Pournelle chart"
}

{
  "etymology_text": "Developed by American science fiction writer Jerry Pournelle in his 1963 dissertation in political science.",
  "forms": [
    {
      "form": "Pournelle charts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pournelle chart (plural Pournelle charts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Nolan chart"
    },
    {
      "word": "Vosem chart"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "A chart plotted on two axes — \"attitude toward the state\" and \"attitude toward planned social progress\" — used to visualize a person's political philosophy."
      ],
      "links": [
        [
          "axes",
          "axis"
        ],
        [
          "visualize",
          "visualize"
        ],
        [
          "political",
          "political"
        ],
        [
          "philosophy",
          "philosophy"
        ]
      ],
      "wikipedia": [
        "Jerry Pournelle",
        "Pournelle chart"
      ]
    }
  ],
  "word": "Pournelle chart"
}