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Object documentationSFC Group

 

A collection of SFC numbers from which the sample is selected for inspection

 

When you define a sample plan, one of the key settings is the SFC Group Size. The SFC group is created based on the number you enter in the SFC Group Size field to indicate how many pieces of an SFC number will be selected to create this group.

Note Note

If the selected SFC number has a quantity greater than the SFC group size, the entire SFC quantity is placed in the SFC group on the Perform Sampling action.

End of the note.

You define how the system is to form SFC group in a sample plan. You can specify to include the following in the SFC group:

  • Any SFC number in the SFC group

  • Only SFC numbers that are being processed at this operation for the first time

  • RMA and non-RMA SFC numbers in the same SFC group

  • SFC numbers from all materials/material groups in the same SFC group

The system forms an SFC group from the SFC numbers in the Complete Pending status which are selected in the POD every time an operator chooses the Perform Sampling button to indicate that this SFC number is to be inspected. When the quantity of pieces in SFC group equals the SFC group size, the Perform Sampling plug-in opens (see Perform Sampling).

When an operator performs sampling in the POD, the SFC numbers selected for sampling from the entire SFC group are listed in the table. The system randomly selects SFC numbers from the SFC group to inspect them and marks them with Y (yes) in the Sample SFC field. Note that if only partial quantity of SFC number is selected for sampling, it is left unmarked.

The quantity of the SFC numbers to inspect (sample size) depends on the following values:

  • For a Custom sample plan, the sample size is defined by the values set in the Fixed Number or Fixed Percentage fields.

  • For an ANSI sample plan, the sample size is defined according to the ANSI standard based on values set in the SFC Group Size, Inspection Level and Inspection Procedure fields.

SFC group can have the following statuses:

Status

Description

Group Created

The SFC group has been created but sampling has not yet occurred.

Sampling Active

The SFC group has been created, sampling has occurred, and the sample SFC numbers have been sent to the sample routing.

Sample Accepted

The SFC group is accepted and the SFC numbers are no longer members of the SFC group.

Sample Rejected

The SFC group is rejected and all the SFC numbers from the SFC group are dispositioned to the sample routing. The SFC numbers are no longer members of the SFC group.

Sample Skipped

The SFC group has been created, but the sampling of the group was skipped by an operator. All SFC numbers from the SFC group are automatically completed and moved to the next operation on the production routing.

Sample Dissolved

The SFC group was created, but the plan was subsequently marked as Obsolete or Hold and all members were removed from the SFC group.

The figure below illustrates the changes of SFC group status during sampling:

Note Note

The history of the SFC groups in the Sample Accepted or Sample Rejected statuses and their members is tracked but this does not prevent an SFC number from becoming a member of another SFC group further on in the manufacturing process.

You can remove SFC numbers from the SFC group by changing the SFC status in the SFC Step Status activity (see SFC Step Status), for example, you can change the status of SFC number to In Queue on the next operation. This is only possible if the sample plan status is Obsolete or Hold and the SFC group status is Group Created.

End of the note.