instance

An instance is data associated with a data type or property. The data type defines the structure of the instance or the type of an elementary data item. Depending on the associated data type, an instance might be elementary, complex or a collection. Instances have a value, which may change and an activity state, which describes the state of an instance in an application.

• An instances is either a property or complex (data type) instances

• An instance is either a local or a global instance (scope)

• Instances are either persistent, temporary or transient (persistence type)