Abstract
The NTT data Fit Co., Ltd. develops the banking system and is maintaining it. The development of the banking system are a lot of generally large-scale projects, And many Task go side by side. It is general that the progress management tool applies the Gantt chart. It is improved to look back on the transition of productivity at the time of in the past the standard maintaining the effectiveness by reviewing a part of Gantt chart effective to making the progress confirmation of point visible. In this text, it introduces the approach.