Class

A classifier that defines the properties of a set of individualized (non-relational) entities of the subject domain — for example Person, Enrollment, or Grade. Its instances may be objects, reified properties, or bare values.

Property	Type	Description
type	"Class"	Discriminator.
literals	id[]	The literals of an enumeration class.
restrictedTo	string[]	The possible ontological natures of the class's instances (see values below).
isPowertype	boolean or null	Whether the (high-order) class is a Cardelli powertype.
order	string or null	The instantiation order: "1" (first-order), "2", "3", … or "*" (orderless).

Class also carries the properties of Classifier (isAbstract, properties), Decoratable (stereotype, isDerived), and the properties common to all model elements.

The values allowed in restrictedTo are: abstract, collective, event, extrinsic-mode, functional-complex, intrinsic-mode, quality, quantity, relator, situation, and type — see Ontological Nature for what each denotes and the named nature subsets.

When present, order must match the pattern ^(\d+|\*)$ — a positive integer such as "1" or "2", or "*" for an orderless class.

The example below is the «kind» Person class with a single attribute, age.

{
  "type": "Class",
  "id": "class_1",
  "name": { "en": "Person" },
  "stereotype": "kind",
  "isDerived": false,
  "isAbstract": false,
  "properties": ["prop_age"],
  "literals": [],
  "restrictedTo": ["functional-complex"],
  "isPowertype": false,
  "order": "1",
  "customProperties": null,
  "created": "2024-09-04",
  "modified": null,
  "alternativeNames": [],
  "description": null,
  "editorialNotes": [],
  "creators": [],
  "contributors": []
}