Abstract: An information processing system includes: a transmission unit configured to transmit transmission data including data including one or more values and identification information associated with the one or more values and a topic indicating an attribute of the data; a database configured to store data for each topic; and a data management unit configured to specify a storage destination of data based on the topic included in the transmission data and stores the data included in the transmission data in the specified storage destination of the data. When a value associated with same identification information as the identification information included in the transmission data is already stored in the database, the data management unit stores one or more values included in the data included in the transmission data in association with the identification information already stored in the database.

Abstract: An information processing system includes: a plurality of databases divided for each topic; a topic management unit configured to manage the topic included in the plurality of databases; and an acquisition unit configured to specify, in response to a request designating the topic, a database corresponding to the designated topic, and request data from the specified database.