The DITOPS Demo:
Critical Lateness

Identifying critically late operations

By looking at the move requirement view we identified that there is a problem with the schedule. By looking at the reports we quantified the problem. Now we have to locate the cause of the problem. We already know that some orders are not getting at the destination on time. It would be nice if we could identify in the resource view and airport view wich are the trips that are late and how late they are. This is accomplished by the critical lateness coloring. DITOPS user interface uses different colors to represent trips that are on time, trips that are late, and trips that are critically late. By late here, we mean any trip that finishes after the required due date. Critically late trips are those that finish after a specified lateness threshold. DITOPS have a critical lateness slider that allow us to set this threshold. In figure critical-lateness-view the threshold is set to four days. All trips that are more than three days late are colored in a dark color (red if you have a color picture.) From the figure, we can see that most of the operations between days 9 and 14 are critically late.

By looking at the tonnage graph we saw that there is a certain time interval in which the deliveries are late. The lateness histogram tells how many of these orders are late and by how many days. The critical lateness slider allow us to identify where exactly are the late orders. By setting the critical lateness threshold at 4, the red rectangles represent all trips that are scheduled to end more than 3 days after the specified due date.