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Function documentation Calculation of Sample Size Locate the document in its SAP Library structure

Use

Once an inspection specification has been assigned to an inspection lot, the sample size must be calculated for the inspection lot. The sample size can be determined as follows:

·        The system calculates the sample size automatically.

·        You trigger the sample determination manually and the system then calculates the sample size.

·        You can enter the sample size manually.

The sample size must be calculated before you can print the sample drawing instructions or the inspection instructions (see Printout of Instructions).

Prerequisites

The system can only calculate the sample size automatically if you use an inspection specification to inspect the goods in the inspection lot.

Features

The following table describes the methods in which the sample size can be determined for an inspection lot:

Method

Description

Automatic calculation of the sample size

If you intend to inspect the goods in an inspection lot using an inspection specification, the system uses the sampling procedures assigned to the inspection characteristics in the inspection specification and the existing quality level to calculate the sample size automatically.

If you intend to inspect the goods in an inspection lot without an inspection specification, the system calculates the sample size using one of the following controls in the inspection data of the material master:

·        Value entered for the Inspection % field

·        100% inspection indicator

Triggering the determination of the sample size manually

You may want to trigger the sample determination manually even though you intend to inspect the goods with an inspection specification. In this case, you must:

·        Set the Manual sample calc. indicator in the inspection settings of the material master

·        Trigger the sample determination in the inspection lot by choosing Edit ® Sample calc.

Manual entry of the sample size

If you intend to inspect the goods in an inspection lot without an inspection specification and you want to enter the sample size manually, you must activate the Manual sample entry indicator in the inspection settings of the material master.

Result

After the sample has been calculated automatically or entered manually, the system changes the inspection lot status to reflect that the sample size has been calculated. If in the process of determining the sample size, the system determines that the current inspection stage for the lot is a skip, the system displays a corresponding message and the inspection lot status is set accordingly.

Note

In some cases, the system may display a message that the sample size has been calculated. However, after checking the sample size, you determine that the sample size is zero. This occurs if the inspection specification contains only optional characteristics, which are not used in the sample calculation.

See also:

Sample Determination

Resetting the Sample Determination

 

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