Time of Dynamic Modification 

Use

You use the time of dynamic modification to specify when the system should update the quality level (dynamic modification at lot creation or dynamic modification when the usage decision is made). You define the time of dynamic modification on the header data screen of the dynamic modification rule.

The dynamic modification process begins with the creation of an inspection lot. At this point, the system determines the quality level based on the dynamic modification criteria and dynamic modification level, in order to calculate the sample size using the current inspection stage. If a quality level does not yet exist, the system creates a new quality level, or it uses the quality level defined in the reference dynamic modification level in Customizing.

For dynamic modification at lot creation, the quality level is updated when an inspection lot is created. The system assumes that the forthcoming inspection will lead to an acceptance of the inspection lot or characteristic.

An inspection lot, which is created immediately after the quality level is updated, uses the information in the updated quality level without a usage decision having been made.

If dynamic modification is carried out at lot creation and the inspection lot is subsequently rejected, the system updates the quality level again when the usage decision is made. The new inspection stage is used by the system to calculate the sample sizes for the next inspection lot.

For dynamic modification with the usage decision, the system updates the quality level when you make the usage decision. At this point, the system evaluates the conditions for an inspection stage change based on the dynamic modification rule and, depending on the results of the current inspection, it determines whether or not the inspection stage should occur.