{
  "version": 1,
  "name": "Entity types and value types",
  "objectTypes": [
    {
      "id": "person",
      "name": "Person",
      "kind": "entity",
      "refMode": "nr",
      "dataType": "integer"
    },
    {
      "id": "gender",
      "name": "GenderCode",
      "kind": "value",
      "dataType": "string",
      "dataTypeLength": 1
    },
    {
      "id": "room",
      "name": "Room",
      "kind": "entity",
      "refMode": "nr",
      "isIndependent": true
    }
  ],
  "factTypes": [
    {
      "id": "isof",
      "roles": [
        {
          "id": "isof.r0",
          "objectTypeId": "person"
        },
        {
          "id": "isof.r1",
          "objectTypeId": "gender"
        }
      ],
      "readings": [
        {
          "id": "isof.rd",
          "roleOrder": [
            "isof.r0",
            "isof.r1"
          ],
          "text": "{0} is of {1}",
          "isPrimary": true
        }
      ]
    },
    {
      "id": "occupies",
      "roles": [
        {
          "id": "occupies.r0",
          "objectTypeId": "person"
        },
        {
          "id": "occupies.r1",
          "objectTypeId": "room"
        }
      ],
      "readings": [
        {
          "id": "occupies.rd",
          "roleOrder": [
            "occupies.r0",
            "occupies.r1"
          ],
          "text": "{0} occupies {1}",
          "isPrimary": true
        }
      ]
    }
  ],
  "subtypeRelations": [],
  "constraints": [
    {
      "id": "uc1",
      "kind": "uniqueness",
      "roles": [
        "isof.r0"
      ]
    },
    {
      "id": "mc1",
      "kind": "mandatory",
      "roles": [
        "isof.r0"
      ]
    },
    {
      "id": "uc2",
      "kind": "uniqueness",
      "roles": [
        "occupies.r0"
      ]
    },
    {
      "id": "vc",
      "kind": "value",
      "objectTypeId": "gender",
      "ranges": [
        {
          "value": "M"
        },
        {
          "value": "F"
        }
      ]
    }
  ],
  "diagram": {
    "shapes": {
      "person": {
        "x": 40,
        "y": 110
      },
      "gender": {
        "x": 300,
        "y": 30
      },
      "room": {
        "x": 300,
        "y": 190
      },
      "isof": {
        "x": 200,
        "y": 38,
        "orientation": "horizontal"
      },
      "occupies": {
        "x": 200,
        "y": 198,
        "orientation": "horizontal"
      }
    }
  }
}