Intended to work together with:
Webel: Convention: [MIGHT CHANGE]: An '@' prefix in a DigitalTwin model indicates a «digital» Block that maps a non-digital «mappable» Block.
Dr Darren says:
I'm not 100% happy with that '*' prefix notation. The tool won't let one use '@' as a prefix in Property names, so this is a workaround. It is meant to be reminiscent of a "pointer".