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Function documentationContext Determination Locate this document in the navigation structure

 

You use this function to ensure that the system processes all dependent objects, in other words, freight units and freight orders, together during VSR optimization.

Note Note

Context determination takes into account the transportation constraints of the freight units. However, for the sake of simplicity, only the freight units are mentioned in the following text.

End of the note.

Only if the system takes the context into account can you be sure that you have a transportation plan that is consistent with regard to all possible dependencies. Possible dependencies include:

  • Incompatibilities between freight units

  • Windows of the freight units

  • Capacity decrease

Features

The system performs context determination automatically when you start VSR optimization in the transportation cockpit. In addition to the objects that you have selected for VSR optimization in the transportation cockpit (that is, either individual objects or all objects), it also considers indirectly linked objects. The system determines the following objects as context and hands them over to VSR optimization:

  • The system determines indirectly linked freight orders from freight units.

    Example Example

    A freight unit is to be delivered from A via B and C to D. You have selected the freight unit for the stage from B to C in the transportation cockpit. A freight order exists for each of the stages A to B and C to D. The system determines these two freight orders as context.

    End of the example.
  • The system determines indirectly linked freight units from freight orders that have already been planned, that is, freight units that have already been planned by other planners.

    Example Example

    You have selected a freight order for stage A to B. Two additional freight units from other planners exist for the stage from A to B. The system determines these two freight units as context.

    End of the example.
  • The system determines indirectly linked freight units from freight units. Here, the system transfers the entire transportation chain to VSR optimization, even if you have selected only one freight unit for a stage.

    Example Example

    A freight unit is to be delivered from A via B and C to D. You have selected the freight unit for the stage from B to C in the transportation cockpit. Additional freight units exist for the stages A to B and C to D. The system determines these freight units as context.

    End of the example.
  • The system determines indirectly linked freight orders from resources. However, this applies to finite resources only (for multiresources, you must have specified the number of individual resources).

    Example Example

    A vehicle resource is to travel from A via B and C to D. A freight order is planned for each of the stages A to B and C to D. The system determines these two freight orders as context.

    End of the example.

Note Note

  • The system determines only those objects as context that you have not explicitly selected.

  • VSR optimization uses the objects that the system has determined as context for information purposes only. VSR optimization is not permitted to change these objects.

  • The system determines the context for multiresources if, in Customizing for the related means of transport, you have selected the checkbox for blocking multiresources and have entered a number of single resources that is greater than zero.

End of the note.