Management system, management method, and dummy container

A management system comprising at least one processor, wherein the processor is configured to

• acquire an image obtained by imaging an outer surface of each of a plurality of sample containers and a boundary container, the sample container containing a sample and in which subject information of a subject from whom the sample is collected is given to the outer surface, the boundary container in which group boundary information indicating a boundary between a plurality of groups of subjects is given to the outer surface in a case where there are the plurality of groups and the samples are continuously tested for the plurality of groups,
• recognize the subject information given to each of the sample containers and the group boundary information given to the boundary container based on the image, and
• associate a test result related to the sample contained in each of the sample containers with a test order which includes the subject information and in which the group is divided corresponding to the group boundary information, based on a result of the recognition and the test order.