A floor finishing apparatus includes a chassis, a housing pivotably mounted to the chassis and having a mounting surface and at least partially defining a chamber, and a plurality of floor finishing units mounted to the mounting surface of the housing. A set of axes in 3 dimensional space is originally defined for tracking orientation of the human character in a 3D image. The content of the rows that existed prior to the change are stored in journal records. The formatting may also comprise formatting network element data to conform to a new database format.