A system provides guidance information for guiding sequencing and acquisition of medical images of objects by obtaining first imaging configuration information of a first object and second imaging configuration information of a second object. The system classifies the first imaging configuration information into, changing information indicating a difference between the first and second imaging configuration and unchanging information indicating no difference between the first and second imaging configuration, by comparing the first imaging configuration information and the second imaging configuration information. The system outputs the changing information as guide information for imaging the second object.