Queue and Transit Times

This supporting function is used to enter and maintain queue and transit times. These are used when calculating lead times for manufactured products. Positive values for queue and transit times increase lead time and negative values reduce it. A negative queue and transit time indicates overlapping of operations.

Outcome

This supporting function results in having queue and transit times entered for further processing, such as for calculating product lead times.

Before you start

Before using this supporting function, the following prerequisites must be met:

For more information, refer to Work Center.

  • Work centers are entered in program Work with Work Centers (PDS010).
  • All work centers have a value specified in field Queue unit.

Follow these steps

This supporting function includes the following activities:

  1. Maintain Parameters for Queue and Transit Times

    Parameters for queue and transit times are maintained in program Work with Queue and Transit Times (PDS020). This is called from the menu or from program Work with Work Centers (PDS010) using option 13 = Queue times. For more information, refer to Maintain Parameters for Queue and Transit Times.

  2. Enter Queue and Transit Times

    Queue and transit times are entered in program Work with Queue and Transit Times (PDS020). This is called from the menu or from program Work with Work Centers (PDS010) using option 13 = Queue times. For more information, refer to Enter Queue and Transit Times.

Alternatives for Queue and Transit Times

The table below describes the alternatives possible for queue and transit times, that is, how they can be entered and their placement in relation to operations.

  • From - Work Center refers to the work center in which an operation has been performed.
  • To - Work Center refers to the work center where the next operation is to be performed.
  • Queue and transit time is the time which must be planned to account for the period from when an operation performed in From - Work Center is ended and operations in To - Work Center are started.
From - Work Center To - Work Center Queue val. regulated by Queue and transit. time - placement in relation to operations
Group 1 Group 2 Queue unit for Group 1 After operation performed in Group 1
Group 2 Group 1 Queue unit for Group 2 After operation performed in Group 2
Group 1 ALL Queue unit for Group 1 After operation performed in Group 1
Group 1 END Queue unit for Group 1 After operation performed in Group 1, if last operation
START Group 1 Always days Before operation performed in Group 1, if first operation
ALL Group 1 Queue type for ALL Before operation performed in Group 1
START Blank Always days General time before first operation when START not combined with specified group
END Blank Always days General time after last operation when END not combined with specified group
ALL Blank Queue type for ALL General after operation when specific from/to combinations missing
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