PURPOSE: To display a composite work machine adaptive for input conditions with its probability, to find a polishing stone, compound and working conditions in the case of the work machine being a barrel work machine and to transfer the output thereof to a computor for control, by inputting the conditions required by the shape and work of a work to a computor with an interactive method.

CONSTITUTION: A software used with the artificial intelligence incorporated in a computor is operated, by performing the inputs of the conditions of a work and conditions of a work object into a computor for work conditions selection and the compatible method of the composite machine adaptive for the input conditions or another polishing including the barrel work, is output, by performing the inputs of the conditions of the work and those for work object into the computor for work conditions selection, in the case of performing the compatible work of the work by a composite polishing device including the barrel work or the barrel work and other polishing work on a work. Simultaneously, barrel work conditions are also output, machine and work conditions are automatically transferred to the computor for control, the operation of work machine and transfer truck are controlled by the command of the computor for control and the composite work is performed by the machine and work conditions.