"Liskov substitution principle" meaning in English

{
  "etymology_templates": [
    {
      "args": {},
      "expansion": "|",
      "name": "!"
    },
    {
      "args": {
        "1": "en",
        "2": "Barbara Liskov"
      },
      "expansion": "Barbara Liskov",
      "name": "lang"
    },
    {
      "args": {
        "1": "en",
        "2": "Barbara Liskov",
        "born": "1939",
        "wplink": "="
      },
      "expansion": "Named after Barbara Liskov (1939–)",
      "name": "named-after"
    }
  ],
  "etymology_text": "Named after Barbara Liskov (1939–), who introduced the concept in 1987.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Liskov substitution principle",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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": "Object-oriented programming",
          "orig": "en:Object-oriented programming",
          "parents": [
            "Programming",
            "Computing",
            "Software engineering",
            "Technology",
            "Computer science",
            "Engineering",
            "Software",
            "All topics",
            "Sciences",
            "Applied sciences",
            "Media",
            "Fundamental",
            "Communication"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A principle stating that any type having a subtype should be replaceable by its subtype without altering any of the desirable properties (such as correctness, task performed, etc.) of the program."
      ],
      "id": "en-Liskov_substitution_principle-en-name-0K9WEk-0",
      "links": [
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "type",
          "type"
        ],
        [
          "subtype",
          "subtype"
        ],
        [
          "replaceable",
          "replaceable"
        ],
        [
          "program",
          "program"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(object-oriented programming) A principle stating that any type having a subtype should be replaceable by its subtype without altering any of the desirable properties (such as correctness, task performed, etc.) of the program."
      ],
      "related": [
        {
          "word": "subtyping"
        }
      ],
      "synonyms": [
        {
          "word": "LSP"
        }
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "neuter"
          ],
          "word": "liskovsche Substitutionsprinzip"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "neuter"
          ],
          "word": "Ersetzbarkeitsprinzip"
        }
      ]
    }
  ],
  "word": "Liskov substitution principle"
}

{
  "etymology_templates": [
    {
      "args": {},
      "expansion": "|",
      "name": "!"
    },
    {
      "args": {
        "1": "en",
        "2": "Barbara Liskov"
      },
      "expansion": "Barbara Liskov",
      "name": "lang"
    },
    {
      "args": {
        "1": "en",
        "2": "Barbara Liskov",
        "born": "1939",
        "wplink": "="
      },
      "expansion": "Named after Barbara Liskov (1939–)",
      "name": "named-after"
    }
  ],
  "etymology_text": "Named after Barbara Liskov (1939–), who introduced the concept in 1987.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Liskov substitution principle",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "related": [
    {
      "word": "subtyping"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Translation table header lacks gloss",
        "en:Object-oriented programming"
      ],
      "glosses": [
        "A principle stating that any type having a subtype should be replaceable by its subtype without altering any of the desirable properties (such as correctness, task performed, etc.) of the program."
      ],
      "links": [
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "type",
          "type"
        ],
        [
          "subtype",
          "subtype"
        ],
        [
          "replaceable",
          "replaceable"
        ],
        [
          "program",
          "program"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(object-oriented programming) A principle stating that any type having a subtype should be replaceable by its subtype without altering any of the desirable properties (such as correctness, task performed, etc.) of the program."
      ],
      "synonyms": [
        {
          "word": "LSP"
        }
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "neuter"
      ],
      "word": "liskovsche Substitutionsprinzip"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "neuter"
      ],
      "word": "Ersetzbarkeitsprinzip"
    }
  ],
  "word": "Liskov substitution principle"
}