name: attribute
type: schema
schema: 
  name:
    type: string
    required: True
  type:
    type: string
    required: True
  mandatory:
    type: boolean
  default:
    type: string
  description: 
    type: string
  ghost:
    type: string
  role: 
      type: string
  precision:
    type: [integer, string]
  scale: 
    type: [integer, string]
  length: 
    type: [integer, string]
  order:
    type: integer
  pii: 
    type: boolean
  props:
    type: dict
  
  # View related
  reference: 
      type: string
  referencetype:
      type: string

  components: 
      type: list
      schema: 
        type: string