Referência

System.Reference (RelationshipType)

Define as propriedades básicas das relações dirigidas

Element properties:

Source	System.Entity
Target	System.Entity
Type
Accessibility	Public
Abstract	True

Source Code:

<RelationshipType ID="System.Reference" Abstract="true" Accessibility="Public">

  <Source ID="RefersTo" Type="System.Entity"/>

  <Target ID="IsReferredBy" Type="System.Entity"/>

</RelationshipType>