An information processing system includes a memory and processors. The memory stores flow information and flow identification information for each process sequence performed by using electronic data. The flow information defines program identification information identifying programs for executing the process sequence, and an execution order of the programs. The processors execute computer-executable instructions stored in the memory to execute a process including receiving information relating to the electronic data and the flow identification information, from a device coupled to the system; acquiring the flow information stored in association with the received flow identification information; and executing the process sequence based on the information relating to the electronic data, by executing the programs identified by the program identification information defined in the acquired flow information, in the execution order. When the process sequence includes an iteration of processes, the processes are repeatedly executed according to a condition of the iteration.