Method, server, and computer-readable recording medium for assisting multiple users to perform collection simultaneously

A server for assisting multiple users to perform a collection simultaneously, comprising:

• a processor coupled to:
• a rewards information managing part for providing mission information to multiple users requesting creation of digital data relating to a specific object during a preset scope of time at a preset location;
• a digital data acquiring part for recognizing an identity of an object within the digital data by matching images of the object with a pre-stored reference object image to compute degrees of similarity and by determining whether those degrees of similarity exceed a prefixed degree of similarity threshold and acquiring from terminals associated with each of multiple users, digital data having information on an image and an auto comment containing a phrase or a sentence properly assembled under grammar of a spoken language, wherein the phrase or sentence includes recognition information on the identity of the objects and recognition information on a place where, and a time when, the image was created;
• condition determining part for determining whether the digital data was created within the prefixed scope of the time by referring to information acquired by time recognition modules of each terminal and whether the recognized object corresponds to the specific object by referring to information acquired if requests for the multiple users to register the digital data are received from their respective terminals;
• a user selecting part for selecting a specified group of users that acquired the digital data within the preset scope of time, wherein the digital data acquired by the specified group of users indicates that the object associated with the acquired digital data corresponds to the specific object;
• wherein the rewards information managing part further provides information on rewards corresponding to the specific object for users included in the specified group of users.