currentRoleRef 

The currentRoleRef attribute defines the nameID reference of the
specific role currently used in an activity. If roles change, this name ID
reference for the currently used role is the referring role that is linked to
the referred-to role in the performsRoleRef.

Attribute Information

Used By

Complex Type PerformsType

Source 

<xsd:attribute name="currentRoleRef" type="xsd:IDREF" use="required">
  <xsd:annotation>
    <xsd:documentation>The currentRoleRef attribute defines the nameID reference of the specific role currently used in an activity. If roles change, this name ID reference for the currently used role is the referring role that is linked to the referred-to role in the performsRoleRef.</xsd:documentation>
  </xsd:annotation>
</xsd:attribute>

Sample