A management apparatus which manages a parameter for an industrial device acquires AGA measurement results obtained by operating the industrial device with an operation job parameter value and non-operation job parameter value. In order to identify data transitions, the received serial data stream is sampled N times per ideal bit time, where the minimum value for N must be greater than 2) and jitter_ratio is the fractional representation of the portion of the ideal bit time during which transitions can be expected or estimated to occur. The plurality of rooms communicate with each other at upper portions which are above an upper end of at least one wall extending vertically.