Entry/exit management system, entry/exit management method, and recording medium

An entry/exit management method comprising:

• performing authentication of a user who passes through a specific area;
• acquiring attribute information about a first user who has succeeded in the authentication;
• determining an allowable number of people who can accompany the first user, on the basis of the attribute information;
• permitting the second user to pass through the specific area together with the first user, when the number of the second users is less than or equal to the allowable number of people;
• and
• presenting an image of the second user to the first user when the number of the second users is less than or equal to the allowable number of people, and permit the second user to pass through the specific area, when the first user permits the second user included in the image as an accompanying person.

A non-transitory recording medium on which a computer program that allows a computer to execute an entry/exit management method is recorded, the entry/exit management method comprising:

• performing authentication of a user who passes through a specific area;
• acquiring attribute information about a first user who has succeeded in the authentication;
• determining an allowable number of people who can accompany the first user, on the basis of the attribute information;
• permitting the second user to pass through the specific area together with the first user, when the number of the second users is less than or equal to the allowable number of people;
• and
• presenting an image of the second user to the first user when the number of the second users is less than or equal to the allowable number of people, and permit the second user to pass through the specific area, when the first user permits the second user included in the image as an accompanying person.