Patent ID: 7768940

Claim:
A data delivery system which is provided with: a delivery request information storage means for storing delivery request information in which a delivery destination indicating a data-using terminal to which delivery object data containing observation time and observation results of a prescribed object of observation are delivered by way of a communication network, a type of delivery object data that are object of delivery, and a delivery condition are placed in correspondence; and a data delivery means for delivering said delivery object data when said delivery condition is realized, wherein said data delivery means, based on packaged delivery information which is used for selecting a delivery method for each delivery object data, delivers all types of delivery object data that have been placed in correspondence with the delivery condition that has been realized to the data-using terminals of all delivery destinations that have been placed in correspondence with the delivery condition that has been realized; said data delivery system comprising: a delivery history information storage means for storing delivery history information indicating history of delivery of said delivery object data by means of said data delivery means; and a packaged delivery information generation means for, based on said delivery history information, generating said packaged delivery information.