| 摘要 |
Update history information of databases is analyzed, and workflow models are automatically displayed with typical workflows and exceptional workflows separately represented. An update history information storage unit stores update history information including identification information of a data update process, and the name and updated time of an updated data set. A workflow extractor generates flow information where the names of updated data sets are arranged in chronological order of updated time, oldest first, for every data update process, and counts the number of appearances of flow information of same. Out of the workflows represented by the flow information, the workflow classification unit classifies the workflows into typical and exceptional workflows depending on the number of appearances. A workflow model display unit displays a typical workflow diagram showing the typical workflows, and in response to user input, displays an exceptional workflow diagram showing the typical and exceptional workflows. |
