Person.yaml

meta:
  name: DRI123
content:
  bases:
  - name: Person
    attributes:
      name: String
      dateOfBirth: Date
      age: Integer
      sex: String
  overlays: 
    - type: OverlayValidation
      base: Person
      class: 
      attributes:
        name: 
          cardinality: "1..1"
          length: "[0..20)"
          pattern: "^[a-zA-Z]+$"
        dateOfBirth:
          cardinality: "1..1"
          valueRange: "[1900-01-01..*]"
        age: 
          cardinality: "0..1"
          valueRange: "[0..*]"
        sex:
          cardinality: "0..1"
          valueOption:
            - male
            - female