Show TOC

 Interactive Sequencing

Definition

You can use sequencing to display, evaluate, and process the results of Model Mix Planning. Sequencing represents the sequence of the planned orders for a planning version and a line structure, in tabular form. It provides information on all detailed data, such as the start and end times or the characteristics evaluation.

In addition, you can check the quality of the order sequence by displaying the restriction violations. You can then move the orders manually, or execute your own procedure.

Structure

Interactive sequencing schedule consists of a navigation tree and four charts:

  • Navigation tree

    In the first hierarchy level, the navigation tree displays all the days in the planning horizon you entered in the initial screen. In the second hierarchy level, it displays the shifts or the daily standard available capacity.

    In the navigation tree, you can select the periods you want to display in the detailed data area.

    You can only change sequences if all the orders have an order quantity of one. If a shift or a day in the planning horizon contains an order with order quantity greater than one, the navigation tree has the symbol in the second level, instead of the symbol . In this case you have to carry out takt-based scheduling with individual orders, before you can move to change mode. You can also reduce the planning horizon so that only orders with quantity 1 remain in the horizon.

    As well as the total order quantity and the operating time of the line, the navigation tree also shows the load per shift. Using the status symbols, you can establish whether the operating time is being used to its full capacity , not being used to full capacity , or overloaded .

  • Restrictions

    In this chart, sequencing shows the attributes of the restrictions, which are valid in the current time period selected. These attributes are taken into account in planning.

  • Backlog

    In this chart, the system displays the planned orders that are scheduled before the current date, but which have not yet been released for production.

  • Scheduled orders

    In this chart, the system displays the planned orders that are scheduled in the time period currently selected. The status symbols show you whether you can still reschedule an order, or whether it is already in production.

  • Deallocated orders

    In this chart the system displays the deallocated planned orders. Deallocated orders initially no longer cover any requirements, and do not affect the capacity of the line resource. However, if you carry out a new model mix planning run, it takes the deallocated orders into account and reschedules them.

    The orders in this screen do not depend on the planning horizon you have just selected. The system always displays all deallocated orders.

Integration

The data relevant for planning is imported each time sequencing is accessed, so that it always displays the current data. However, you can only move to the change mode of sequencing if all orders have order quantity 1 and are scheduled in takts. If this is not the case, you can split the orders into a lot size of 1 using takt-based scheduling . You do this in sequencing.