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Boolean properties

Booleans are yes/no answers.

They store:

  • true for yes.
  • false for no.

Good boolean titles​

Good:

Patient uses a mobility aid

Bad:

Mobility aid

The good version is clear because the answer can be yes or no.

Simple confirmation​

"is-post-op": {
  "title": "Is this a post-op visit?",
  "type": "boolean",
  "description": "Mark yes if today’s visit is related to recent surgery"
}

Boolean that reveals follow-ups​

"mobility": {
  "title": "Mobility",
  "type": "object",
  "properties": {
    "uses-mobility-aid": {
      "title": "Patient uses a mobility aid",
      "type": "boolean",
      "description": "Confirm if the patient relies on any aid to walk"
    }
  },
  "allOf": [
    {
      "if": {
        "properties": { "uses-mobility-aid": { "const": true } },
        "required": ["uses-mobility-aid"]
      },
      "then": {
        "properties": {
          "aid-type": {
            "title": "Aid type",
            "type": "string",
            "oneOf": [
              { "const": "CANES", "title": "Cane" },
              { "const": "WALKER", "title": "Walker" },
              { "const": "WHEELCHAIR", "title": "Wheelchair" }
            ]
          }
        },
        "required": ["aid-type"]
      }
    }
  ]
}

Simple rule​

Use booleans when the question can be answered with yes or no. If the answer needs details, add follow-up fields with dependencies or conditions.