Analyzing Scheduler Results

You can use the Schedule Viewer (tisch8350m000)session to display and analyze the output and input date used to generate schedules by the job shop scheduler.

The input and output schedules of the job shop scheduler run can be analyzed via the Schedule Viewer (tisch8350m000) session. You can start the session by selecting a run and using the Analyze Input Schedule or Analyze Output Schedule commands from the appropriate menu in the Job Shop Schedule Runs (tisch1100m000).

Note:

The Analyze Input Schedule is available when an input schedule is present for the selected run.
The Analyze Output Schedule is available when an output schedule is present for the selected run.

In the Schedule Viewer (tisch8350m000) session, you can view a graphic of the scheduled machine operations, machine unavailability and machine capacity, machines are grouped by machine capacity group and work center.

The key performance indicators you can use for analysis are:

Average Lateness: expressed in the (fractional) number of days.
The lateness of an order is defined as the time difference between the due date and planned finish date, expressed in days. The average lateness is the total days late divided by the number of orders, expressed in days (1 decimal).
Example: the average lateness is +1.2 days.
Average Bottleneck Utilization: expressed as a percentage.
The sum of all used capacity of the machines divided by the sum of all available capacity of the machines.
Example: the average bottleneck utilization is 98%.
Predicted Orders Completed in Time: expressed as a percentage.
The numbers of orders that are on time or early divided by the total number of orders.
Example: the predicted orders completed in time is 32%.
Number of Orders: expressed as a number.
The total number of the production orders with the status Created, Printed, Released, or Active and that are within the time frame of the scheduler run.
Example: the number of orders is 600.
Number of Operations: expressed as a number.
The total number of machine operations of the production orders that are defined as within the time frame. An order operation without machine operations is considered as one machine operation. An order without operations is considered as one machine operation.
Example: The number of operations is 800.
Number of Conflicting Operations: expressed as a number.
The total number of conflicting machine operations. The objective of scheduling is to minimize problems on the production floor. A conflict is a situation which lessens the feasibility of the generated schedule.
Example: the number of conflicting operations is 20

Updating Production Orders

You can use the output schedule of the job shop schedule to update existing production orders, order operations and machine operations. The Update Production Orders command in the appropriate menu of the Job Shop Schedule Runs (tisch1100m000) session to start the Update Production Orders (tisch1200m100) session to update a selected schedule.

Note: The Update Production Orders (tisch1200m100) session cannot be started stand alone. The session is enabled if the output schedule is available and the job shop schedule run is Actual. On the updated production orders the check box Scheduled is set.