Show TOC

 Smoothing of Requirements Locate this document in the navigation structure

Use

You can smooth the dependent requirements and all other preselected requirement types using your desired method.

Prerequisites

  • You have specified the desired smoothing type in the Customizing activity Define Calculation Profiles .

  • You have specified the factory calendar for the supply source in the Customizing activity Define Calculation Profiles .

  • If the working times of the demand source (consumer) differ from those of the supply source (supplier), you must also define a factory calendar for the working days of the demand source and likewise specify this in the Customizing activity Define Calculation Profiles .

  • If required, you have defined the additional requirement types. To do so, in the Kanban menu, choose   Control Cycle   Kanban Calculation   Consideration of Requirement Types.   See also: Taking Further Requirement Types into Account

Features

The following methods are available for smoothing the requirements:

  • Even distribution of the requirements over a period

    The requirements of a period are distributed evenly over the selected period. A period may be a week, a month, or a quarter. The period of examination can contain several of these periods.

  • Distribution of the dependent requirements with a distribution key between earliest dependent requirement date/time and latest dependent requirement date/time

    The distribution key either comes from the individual dependent requirement via the BOM item or is specified centrally in the calculation profile via Customizing for Kanban and assigned to the control cycle. Even distribution makes the most sense in this case.

    Smoothing with the distribution function for additional requirements is not supported.

    Note Note

    You define the distribution key in Customizing under Production → Capacity Capacity Planning → Operations → Capacity Requirement → Distribution Define Distribution Key.

    End of the note.

In the case of even distribution of the requirements over a period (e.g. a week or a month), the system uses the factory calendar that you have entered for the consuming work center. If you have not specified a factory calendar for the demand source, the system uses the factory calendar of the supply source as the basis for smoothing. See below: Example 2.

If you have also specified a factory calendar for the demand source, the system uses the working days of the demand source. See below: Example 3.

Example

Example 1

The following graphic illustrates how the system proceeds taking dependent requirements as an example. First using a distribution key and then with smoothing within one week:

This graphic is explained in the accompanying text.

Example 2

The following example illustrates the smoothing for a working week taking the working days of the supply source into account. In this example, the supply source works one day longer than the demand source. However, you have only specified the factory calendar of the supply source. For this reason, only the number of working days at the supply source is taken into account.

This graphic is explained in the accompanying text.

Example 3

In this example, the factory calendar of the demand source has additionally been maintained. Just as in the case of Example 2, the demand source works 5 days only (from Monday to Friday). For the smoothing of the requirements, the 5 working days of the demand source are now applied. This leads to a smoothed requirement quantity of 1.2 pc per day.

This graphic is explained in the accompanying text.