A data registration system (1) includes a terminal (20), a storage (10), and a server (30) communicable one another via a network. The terminal (20) executes check program (11) stored in a first area (P) of the storage (10) to function as a data receiving unit (21), a format checking unit (22), a data storing unit (23), and an alerting unit (24). The format checking unit (22) checks whether or not the format of data received by the data receiving unit (21) is correct. When the format of the data is correct, the data storing unit (23) stores this data in a second area (D1 to Dn) of the storage (10). An executing unit (32) of the server (30) executes a process to the data which is stored in the second area (D1 to Dn) of the storage (10) and which has the correct format.