A management apparatus includes a memory and a processor coupled to the memory. The processor is configured to execute a grouping process that includes a collection process which collect information from each of a plurality of devices based on a history of communication processes executed with another device of the plurality of devices and store the information in the memory, execute a creation process which create a group by correctively combining one or more pairs of communication source and communication destination devices in which communication processes of a same type were executed at a same time interval based on the information collected in the collection process and output display information for displaying information of the devices included in the group created by the grouping process.