{
  "type": "object",
  "title": "Personal schema.",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "personnel": {
      "type": "object",
      "additionalProperties": false,
      "title": "The 'personnel' property",
      "description": "Defines the personnel as a collection of person entries.",
      "properties": {}
    }
  }
}

 "personnel": {
  "type": "object",
  "additionalProperties": false,
  "title": "The 'personnel' property",
  "description": "Defines the personnel as a collection of person entries.",
  "properties": {
    "person": {"$ref": "#/definitions/personType"}
  }
}

 "person": {"$ref": "#/definitions/personType"}

 "personType": {
  "type": "array",
  "uniqueItems": true,
  "title": "The 'person' property",
  "description": "Specifies information about a person.",
  "items": {
    "type": "object",
    "additionalProperties": false,
    "description": "Rules for properties defining the items that constitute a 'person'",
    "required": [
      "id",
      "name",
      "email",
      "link"
    ],
    "properties": {
      "id": {"$ref": "#/definitions/idType"},
      "name": {"$ref": "#/definitions/nameType"},
      "email": {
        "type": "string",
        "format": "email",
        "title": "The 'email' schema.",
        "description": "Email address for this person."
      },
      "link": {"$ref": "#/definitions/linkType"}
    }
  }
}

 "items": {
  "type": "object",
  "additionalProperties": false,
  "description": "Rules for properties defining the items that constitute a 'person'",
  "required": [
    "id",
    "name",
    "email",
    "link"
  ],
  "properties": {
    "id": {"$ref": "#/definitions/idType"},
    "name": {"$ref": "#/definitions/nameType"},
    "email": {
      "type": "string",
      "format": "email",
      "title": "The 'email' schema.",
      "description": "Email address for this person."
    },
    "link": {"$ref": "#/definitions/linkType"}
  }
}

 "idType": {
  "type": "string",
  "maxLength": 20,
  "title": "The 'id' property",
  "description": "Specifies a required ID for this person. ",
  "examples": ["Big.Boss"]
}

 "id": {"$ref": "#/definitions/idType"}

 "nameType": {
  "type": "object",
  "additionalProperties": false,
  "title": "The 'name' property",
  "description": "Specifies the family and given name for the person.",
  "required": [
    "family",
    "given"
  ],
  "properties": {
    "family": {"$ref": "#/definitions/nameValueType"},
    "given": {"$ref": "#/definitions/nameValueType"}
  }
}

 "nameValueType": {
  "type": "string",
  "minLength": 1,
  "maxLength": 20,
  "pattern": "^[a-zA-Z ]*$",
  "title": "The 'family' or 'given' property",
  "description": "The first name or last name of the person.",
  "examples": ["John"]
}

 "family": {"$ref": "#/definitions/nameValueType"}

 "given": {"$ref": "#/definitions/nameValueType"}

 "name": {"$ref": "#/definitions/nameType"}

 "email": {
  "type": "string",
  "format": "email",
  "title": "The 'email' schema.",
  "description": "Email address for this person."
}

 "linkType": {
  "type": "object",
  "additionalProperties": false,
  "title": "The 'link' property",
  "description": "Specifies who is the manager and who are the subordinates for this person.",
  "properties": {
    "subordinates": {
      "type": "array",
      "title": "The 'subordinates' propety",
      "description": "Specifies the ids of the subordinates.",
      "items": {}
    },
    "manager": {"$ref": "#/definitions/idType"}
  }
}

 "subordinates": {
  "type": "array",
  "title": "The 'subordinates' propety",
  "description": "Specifies the ids of the subordinates.",
  "items": {"$ref": "#/definitions/idType"}
}

 "items": {"$ref": "#/definitions/idType"}

 "manager": {"$ref": "#/definitions/idType"}

 "link": {"$ref": "#/definitions/linkType"}