Abstract: A system (1) for the virtual assistance of an operator of a processing apparatus (B1, B2, B3) for processing workpieces (W) which preferably consist at least in sections of wood, wood materials, synthetic material or the like, comprising: a mobile terminal device (10) which is configured to be worn by the operator, and that has: position detection means (11) which are configured to detect data for determining the position of the mobile terminal device (10) in relation to the processing apparatus (B1, B2, B3), information output means (12) which are configured to output information and/or operational instructions to the operator, and a preferably wireless data transmission interface (13) which is configured to communicate with a data server (20).