Platform system, data conversion method and computer-readable non-transitory medium

A platform system includes: a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: receiving data from a second platform when a first platform requires the second platform to send the data, the first platform being configured to output one or more data from data which the first platform has, the second platform being configured to output one or more data from data which the second platform has; and converting a data structure of the data into a data structure required by the first platform in accordance with a difference between a data structure regulated by the first platform and a data structure regulated by the second platform; and sending the data, of which the data structure is converted, to the first platform.