Patent ID: 8607063

Claim:
An information processing system in which an image processing apparatus being capable of connecting multiple authentication apparatuses for authenticating a user of the image processing apparatus and an information processing apparatus are communicably connected to each other, the image processing apparatus comprising: an acquisition unit that acquires, when a user requests a login operation, authentication apparatus information indicating at least one of the authentication apparatuses which has been connected to the image processing apparatus, a login request unit that generates a login request containing the authentication apparatus information acquired by the acquisition unit to notify the information processing apparatus of the login request, and a display control unit that displays, as a response for the login request, an authentication screen on a display unit using screen information sent from the information processing apparatus, the authentication screen corresponding to at least one of the authentication apparatuses which has been connected to the image processing apparatus, and the information processing apparatus comprising: a screen information generation unit that generates, when the login request unit sends the login request, screen information of an authentication screen for executing authentication using any one of the authentication apparatuses indicated by the authentication apparatus information, and a screen information notification unit that notifies the image processing apparatus of the screen information, as a response for the login request, which has been generated by the screen information generation unit.