Inspection Levels

An inspection level determines the relative amount and frequency of inspection.

You create an inspection level and associate it with a Receiving or Work in Process inspection plan.

With inspection levels, you can determine if:

The entire quantity must be inspected, or if sampling should be employed
All receipt lines must be inspected or if some can be skipped

Note: Skip lot is applicable only for the Receiving inspections.

Except for the Receiving plan type and the Work in Process plan type, all other plan types only allow 100 percent inspection level.

When sampling is enabled in an inspection level, you can choose one of these sampling types:

Sampling Plan Type	Description
ANSI/ASQC Z1.4 Standard	Where certain number of defects are acceptable, you can define inspection levels with acceptance sampling based on different acceptable quality limits. For example, based on the size of the quantity received, you can automatically derive the tolerance limit for acceptable defects. During inspection, if defects are within the tolerance limit, you can accept the received quantity.
Fixed Count	Specify the fixed number of samples to be inspected. This enables you to inspect a fixed number of samples irrespective of the receipt line quantity during a receiving inspection, and work order operation completion quantity during a work in process inspection.
Percentage	Specify the percentage of the total quantity to be inspected.

Sampling Plan Type

Description

ANSI/ASQC Z1.4 Standard

Where certain number of defects are acceptable, you can define inspection levels with acceptance sampling based on different acceptable quality limits. For example, based on the size of the quantity received, you can automatically derive the tolerance limit for acceptable defects. During inspection, if defects are within the tolerance limit, you can accept the received quantity.

Fixed Count

Specify the fixed number of samples to be inspected. This enables you to inspect a fixed number of samples irrespective of the

receipt line quantity during a receiving inspection, and
work order operation completion quantity during a work in process inspection.

Percentage

Specify the percentage of the total quantity to be inspected.

Also, you can specify the amount of material required to perform all tests against a single sample, including a sample quantity unit of measure.

During inspection, once results are entered for the required samples, the inspection disposition is automatically determined as accepted or rejected based on the inspection level leveraged in the inspection plan:

With percentage-based sampling and fixed count sampling, the entire inspection quantity will be rejected if even one of the representative samples fails the inspection.
With AQL sampling, the entire inspection quantity will be rejected if the number of representative samples that fail inspection is greater than or equal to the rejection quantity as set forth in the Acceptable Quality Limit tables

Note: If either percentage or fixed count inspection level is selected in an inspection plan, during the in-line work in process inspections for serial controlled items, you can use the Inspect All option, only for completion quantities of less than 800.