A method for controlling a handling of a further object carried out by an object control entity apparatus, comprising - determining a site plan of a site where a further object is handled by at least two different workstations (51, 52) and is moved between the at least two different workstations, the site plan indicating the at least two workstations at predefined positions in the site plan, - determining a trajectory of a first object moving in the site in an absolute coordinate system of the site, the trajectory relating to a handling of the first object by the at least two workstations, - deducing absolute positions of the at least two workstations (51, 52) in the absolute coordinate system from the determined trajectory of the first object, - using the absolute positions of the at least two workstations (51, 52) for controlling the handling of the at least one further object handled by the at least two workstations, - matching the predefined positions of the at least two workstations (51, 52) in the site plan to the absolute positions of the at least two workstations, - determining an adapted site plan of the site based on the matching, the adapted site plan comprising the absolute positions of the at least two workstations in the absolute coordinate system, - using the adapted site plan for controlling the handling of at least one further object, wherein a conveyer is provided to move the first object from one of the at least two workstations to another of the at least two workstations, wherein determining a trajectory comprises determining an absolute conveyor trajectory comprising positions of the first object moving between the two workstations in the absolute coordinate system and comprises determining an absolute workstation trajectory for each of the at least two workstations comprising positions of the first object during manipulation at the corresponding workstation in the absolute coordinate system, wherein the conveyer trajectory and the absolute workstation trajectory are used for controlling the handling of the at least one further object. - determining a site plan of a site where a further object is handled by at least two different workstations (51, 52) and is moved between the at least two different workstations, the site plan indicating the at least two workstations at predefined positions in the site plan, - determining a trajectory of a first object moving in the site in an absolute coordinate system of the site, the trajectory relating to a handling of the first object by the at least two workstations, - deducing absolute positions of the at least two workstations (51, 52) in the absolute coordinate system from the determined trajectory of the first object, - using the absolute positions of the at least two workstations (51, 52) for controlling the handling of the at least one further object handled by the at least two workstations, - matching the predefined positions of the at least two workstations (51, 52) in the site plan to the absolute positions of the at least two workstations, - determining an adapted site plan of the site based on the matching, the adapted site plan comprising the absolute positions of the at least two workstations in the absolute coordinate system, - using the adapted site plan for controlling the handling of at least one further object, wherein a conveyer is provided to move the first object from one of the at least two workstations to another of the at least two workstations, wherein determining a trajectory comprises determining an absolute conveyor trajectory comprising positions of the first object moving between the two workstations in the absolute coordinate system and comprises determining an absolute workstation trajectory for each of the at least two workstations comprising positions of the first object during manipulation at the corresponding workstation in the absolute coordinate system, wherein the conveyer trajectory and the absolute workstation trajectory are used for controlling the handling of the at least one further object.