| 摘要 |
PROBLEM TO BE SOLVED: To support anybody to judge the position where abnormality such as a decrease in efficiency is caused in a short time. SOLUTION: This device is provided with a data retrieval means 6 which takes a specific group of data out of a history data base according to a group point data base 7 which stores group units of data to be taken out for data stored in the history data base 5, an arithmetic means 8 which performs operation required to decide abnormality of the retrieved data by using an arithmetic expression set in an arithmetic data base 9, an abnormality deciding means 10 which decides the abnormality according to the arithmetic result of the arithmetic means 8, source data used for the operation, and a decision value set in a decision value data base 11, and an abnormality information generating means 12 which generates display data of abnormality information from the decision result of the abnormality decision means 10. |
