PURPOSE: To obtain the same analyzing result with all operators by refering to a link map and a factor analyzing data base.

CONSTITUTION: When the analyzing result is outputted, a memory register information input means 16 inputs the memory register information to a trap report analyzing tool 1b from a saving file 2b. A link map reference means 17 refers to a link map 2c showing the link state between the object which are previously stored in a magnetic disk device 2 and detects generated task name 21, a generated module name 22, and a generating area 23 of a trap analyzing result list 20. Then a data base reference means 18 refers to a factor analyzing data base 2b consisting of a pattern produced by a trap and stored previously in the device 2 and the data on the factor and the processing corresponding to the pattern and detects the factor 24 and the processing 25 of the list 20. An output means 19 outputs the list 20 to a printer 3 based on the trap analyzing result.