The following information shows you how to dynamically calculate the supplementary key figures of the vendor, customer and material analysis with a reference to inspection lot in the Quality Management Information System during runtime. The key figures originate from the information structures S068 (Vendor) and S069 (Material) and S104 (Customer).

The lead time of an inspection begins with the date on which the inspection lot was created and ends with the date on which the usage decision is made. The lead time is also the difference in factory calendar days between these two basic dates (inspection lot creation and the usage decision) while taking the time into account.

If the usage decision is made on the same day that the inspection lot is created (a skipped lot, for example), then the lead time is > 1.

In QMIS the average and standard deviation are calculated for the lead time (LT).

• Average lead time

• Standard deviation of the lead time

The share of non-conforming units and the number of defects per 100 units are used in the sampling system for an inspection based on qualitative characteristics and for formulation of sampling plans as the quality level.

In QMIS the average and standard deviation are calculated for the share of non-conforming units in the inspection lot (SHR).

• Average share of non-conforming units

• Standard deviation of the share of non-conforming units

The quality score is a relative or standardized statistical value that describes the valuation of the quality.

In QMIS the average and the standard deviation are calculated for the quality score (QSc).

• Average quality score

• Standard deviation of the quality score

In QMIS, a rate refers to a quantity-related or a number-related ratio expressed as a percent.

• The rate of rejected lots represents the ratio of the number of rejected lots to the total number of lots.

• The rate of skipped lots represents the ratio of the number of skipped lots to the total number of lots.

• The rate of the rejected quantity represents the ratio of the rejected quantity to the total lot quantity.

• The rate of the skipped quantity represents the ratio of the skipped quantity to the total lot quantity.

• The rate of the sample quantity represents the ratio of the sample quantity to the total lot quantity.