Apparatus and method of executing update, recording medium using the same, and server and method of providing update

A server for providing an update, comprising:

• an open date transmitting unit configured to transmit information indicating to a device an update open time pertaining to a specific application;
• a request receiving unit configured to receive information from the device requesting an update of the specific application;
• a requested time determining unit configured to determine whether a time of receiving the update request information is after the update open time;
• and
• an update information transmitting unit configured to, in response to the time determining unit determining that the update request time is after the update open time, transmit update information to the device to update the specific application,
• wherein the server is configured to randomly select the predetermined value for each said device from values within a predetermined range by using a pseudo-random function, and
• wherein the server is further configured to set and change the predetermined range based on at least one of:
• an urgency and importance of the update of the specific application,
• a number of devices in which an application requiring the update is installed,
• a performance of the server,
• a time required for transmitting an update file to one device, and
• a communication environment.

A method of providing an update of a specific application installed in a device by a server, the method comprising:

• transmitting, by the server to the device, information indicating an update open time;
• receiving, by the server from the device, information requesting an update of a specific application installed in the device;
• determining, by the server, whether a time of receiving the update request information is after the update open time;
• and
• transmitting, by the server in response to determining that the update request time is after the update open time, update information for the specific application to the device,
• wherein the predetermined value is randomly selected by the server for each said device from the values within a predetermined range by using a pseudo-random function, and
• wherein the predetermined range is set and changed by the server based on at least one of:
• an urgency and importance of the update of the specific application,
• a number of devices in which an application requiring the update is installed,
• a performance of the server,
• a time required for transmitting an update file to one device, and
• a communication environment.