Webel Twin Pattern: A DigitalEntity (a.k.a. «digital» @Entity) used as a digital variant must not be directly bound to a «physical» PhysicalEntity (may not directly actuate/sense/affect)

A «digital» variant may be used to explore possible or anticipated changes to a «physical» PhysicalEntity that is mapped by a unique «digital» @Entity , but it not a direct part of the control loop of the «twin» DigitalTwin . It may, however, be used by the control system as an idealised target for driving the «physical» PhysicalEntity into a desired position (against which the unique «digital» @Entity must then be synchronised).