Abstract: The invention relates to a method for the automated detection of individual parts of a complex differential structure. The method comprises the following steps: a) acquiring the structure by conventional measurement methods, b) creating a measurement point cloud of the acquired structure, c) calculating one or more specification point clouds from a specification structure of the individual parts, d) carrying out a fit of the specification point cloud into the measurement point cloud, e) evaluating the fitting process in order to acquire the position deviation or missing or surplus individual parts.