Method for controlling an operation of at least one function component in a motor vehicle with an operation of another function component of the motor-vehicle and/or with an operation of at least one vehicle-external function component, wherein - the at least one function component in the motor-vehicle is aggregated to form a vehicle-own domain and the at least one vehicle-external component is aggregated to form a vehicle-external domain, and - for each domain tool messages (21, 21') are generated, wherein each tool message (21, 21') describes a current situation taking place in the domains (14, 16) and each tool message (21, 21') is generated according to a respective predetermined aggregation instruction (24, 24') from respective sensor data and/or status data of at least one function component (5, 17) of the domains (14, 16) and/or from at least one other tool message (21, 21'), and - a storage device of a control device (11, 11') provides at least one context rule which is automatically generated and/or defined by a user by means of an operating device, wherein each context rule specifies at least one respective predetermined control instruction for a respectively predetermined function component (5, 17) of one of the domains (14, 16) for the case that at least one predetermined tool message (21, 21') is received by the control device or is itself determined by means of an own aggregation instruction on the basis of at least one received tool message, and - a monitoring device of the control device (11, 11') on the basis of the at least one context rule which controls function components (5, 17) specified respectively in the context rule, characterised in that the domains (14, 16) include in each case a gateway device (7, 19) and transmit via their respective gateway device (7, 19) their tool messages to the control device (11, 11'), and wherein at least one of the tool messages (21, 21') is generated according to a respective predetermined aggregation instruction (24, 24') by the combining of sensor data of several function components (5, 17) of the respective domains (14, 16) and/or based on at least one other tool message (21, 21'), in order to achieve an abstracting or detailing of a situation description. - the at least one function component in the motor-vehicle is aggregated to form a vehicle-own domain and the at least one vehicle-external component is aggregated to form a vehicle-external domain, and - for each domain tool messages (21, 21') are generated, wherein each tool message (21, 21') describes a current situation taking place in the domains (14, 16) and each tool message (21, 21') is generated according to a respective predetermined aggregation instruction (24, 24') from respective sensor data and/or status data of at least one function component (5, 17) of the domains (14, 16) and/or from at least one other tool message (21, 21'), and - a storage device of a control device (11, 11') provides at least one context rule which is automatically generated and/or defined by a user by means of an operating device, wherein each context rule specifies at least one respective predetermined control instruction for a respectively predetermined function component (5, 17) of one of the domains (14, 16) for the case that at least one predetermined tool message (21, 21') is received by the control device or is itself determined by means of an own aggregation instruction on the basis of at least one received tool message, and - a monitoring device of the control device (11, 11') on the basis of the at least one context rule which controls function components (5, 17) specified respectively in the context rule,