Valuation Mode

The valuation mode, together with the sampling type, defines which parameters the system uses to determine a sample size. The valuation mode specifies the rules for accepting and rejecting a characteristic or sample (for example, attributive inspection on the basis of nonconforming units, variable inspection according to s-method, and SPC inspection).

In an attributive inspection , the number of defects or number of nonconforming units in a sample are determined. When you inspect each characteristic, the system compares the number of defects or nonconforming units to the acceptance number for each characteristic. If the number of defects or nonconforming units does not exceed the acceptance number, the characteristic is accepted. In an attributive inspection, you inspect qualitative inspection characteristics .

In order to have a variable inspection , at least one specification limit must be defined in the inspection plan for the relevant quantitative characteristic. In a variable inspection, you inspect quantitative characteristics .