A data management device includes a memory configured to save data and a processor. The processor is configured to save acquired data into the memory when the save command is received. The processor is further configured to execute a process which processes the data acquired by the acquisition unit when the specific command is received. The process is different from saving the data into the memory. The processor is still further configured to generate a first data name in accordance with a first rule and attach the first data name to the acquired data. Moreover, the processor is configured to generate a second data name in accordance with a second rule different from the first rule and attach the second data name to the acquired data.