| # Test Groups (qmptc0136m000) Use this session to view test groups by quality ID. Data defined by test group applies to all the characteristics defined for that test group. In the details session, you can define and/or maintain test groups by quality ID. Related topics Quality ID's and quality combinations Quality ID The code to which data is linked that is necessary to check the quality requirements of an item. Since one quality ID can be used for a group of products that require the same quality standards and tests, a quality ID can considerably reduce time. Test Group The definition of how often you take samples to test an order quantity, and what the sample size is. Test Type Allowed values: Acceptable Quality Level The minimum percentage of a test sample that must be approved to have the entire item quantity approved. For instance, if the AQL is set to 90 and the percentage approved lies below that figure, the entire quantity is rejected. Note This field does not apply when you enter 100 % in the Acceptable Quality Level field Related topics Examples of the Acceptable Quality Level (AQL) Frequency Unit The unit in which the sample size is expressed. Note The frequency unit and the unit of the order quantity do not have to be identical. However, in that case a correct conversion factor is essential. When no conversion is found, the inventory unit of the item is used as frequency unit. Quantity The interval between two samples, expressed in the frequency unit. Explanation: A new sample of 10 pieces is drawn for every 100 pieces. In this case there will be 11 samples of 10 pieces. Example
Sample | 10 pieces
Frequency | 100 pieces
Order quantity | 1150 pieces
Note You cannot continue the inspection procedure if the order quantity is less than the frequency quantity (e.g. if the order quantity is 40, and the frequency quantity is 50). In such a case, no samples can be generated, and you must reduce the frequency quantity. Percentage The sample size is the total quantity that is to be tested. In this field, it is expressed as a percentage of either the order quantity or the frequency quantity (if you enter Continuous Sampling in the Test Type field). Example
Test Type | Single Sampling
Order Quantity | 10000 | 20000 pieces
Percentage | 1% | 1%
Sample Quantity | 100* | 200* pieces
* The sample size is automatically updated when the order quantity is changed. Sample Unit The unit in which the sample size is expressed. If the sample size is expressed as a percentage, the system will use the unit of the order quantity (which is the inventory unit). The sample unit and the unit of the order quantity do not have to be identical, in which case, however, a correct conversion factor is essential. Sample Quantity The total quantity of all samples which are to be tested out of the order quantity. It is expressed in the unit of the sample size. In this field, it is expressed as a fixed quantity.
Example
Order quantity | 10000 | 20000 pieces
Percentage | 0% | 0%
Sample Quantity | 50 | 50 pieces