Manager, management system, management method, and non-transitory computer readable storage medium

A management method comprising:

• obtaining an image of an identifier in which an identification information is included, the identification information being assigned to each management target which is managed by a manager;
• reading the identification information included in the identifier in the image obtained by the obtaining;
• obtaining an information processing method, which is associated with the identification information read by the reading, from the registration information including the identification information and the information processing method which are associated with each other, the information processing method being for obtaining a state information indicating a state of the management target;
• and
• obtaining the state information by using the information processing method obtained by the obtaining.

A non-transitory computer readable storage medium storing one or more programs configured for execution by a computer, the one or more programs comprising instructions for:

• storing, into a storage, a registration information including an identification information and an information processing method which are associated with each other, the identification information being assigned to each management target which is managed by a manager, the information processing method being for obtaining a state information indicating a state of the management target;
• obtaining an image;
• reading the identification information included in an identifier in the image;
• obtaining, from the storage, the information processing method which is associated with the identification information;
• and
• obtaining the state information by using the information processing method.