Management apparatus and management system

A management system comprising:

• a management apparatus;
• and
• an image forming apparatus,
• the management apparatus including:
• an acquisition unit configured to acquire, from the image forming apparatus, remaining-quantity information indicating a remaining quantity of a consumable included in the image forming apparatus;
• a database configured to store the remaining-quantity information acquired by the acquisition unit and apparatus identification information for identifying the image forming apparatus in association with each other, and to store user identification information for identifying a user and a usage history of the image forming apparatus by the user in association with each other;
• a calculation unit configured to read the usage history from the database based on externally-designated user identification information, to calculate a predicted usage quantity of the consumable in an image forming apparatus having externally-designated apparatus identification information based on the read usage history, to read the remaining-quantity information from the database based on the externally-designated apparatus identification information, and to generate required information on the consumable based on the read remaining-quantity information and the calculated predicted usage quantity;
• and
• a notification unit configured to notify the required information generated by the calculation unit,
• the notification unit being configured to transmit the required information to a communication terminal,
• the required information received from the notification unit being notified at the communication terminal.