Use

When you valuate inspection characteristics or partial samples, you determine whether the predefined quality requirements have been met. The results provide the basis for making the usage decision, and they are used to automatically determine the sample scope for future inspections. A successful valuation is a prerequisite for closing a characteristic or a partial sample.

The function for valuating characteristics is contained on the characteristic overview screen and characteristic single screen when you record results for characteristics.

The selected characteristic is valuated from the single screens. From the characteristic overview screen all selected characteristics are valuated. If no characteristic is selected, the system accesses the characteristic on which the cursor is positioned.

If the valuation is successful, the status of the characteristic is set to "valuated" (status 3). The result of the valuation is displayed on the single screen and on the characteristic overview screen in the Valuation column.

The valuation contains the inspection result that can be used to make the usage decision. Possible values:

Features

Accepting a characteristic

A characteristic is generally accepted when the predefined quality requirements are met; if this is not the case, a characteristic is rejected.

After the valuation of a characteristic, you can no longer enter values in the data fields and entry screens. If you want to change or add to the inspection results for a characteristic that has already been valuated, you must reset the status so that the characteristic can again be processed.

Rejecting a Characteristic

When you reject a characteristic, you must also enter a defect class for the characteristic in a dialog box. Defects can be divided into three classes:

For more information, see Activating the Entry of a Defect class .

If the confirmation of defect codes from the defect catalog (catalog type 9) was defined in the task list for certain characteristics, the system determines the defect class on the basis of predefined defect codes . If no defect classes were predefined, the system uses the standard defect class defined in Customizing under the plant settings.

The quality score, assigned to the defect class in Customizing, is used by some procedures to determine the quality score for the inspection lot.

If a characteristic is rejected in the valuation, the system automatically creates a defect record , provided certain conditions are fulfilled.

For more information, see:

Unsuccessful Valuation

The valuation is not successful if an acceptance or a rejection decision cannot be made by the predefined valuation procedure. The most common reason for an unsuccessful valuation is that the inspection results needed for the valuation are either partially or completely missing.

If the valuation of a characteristic is not successful, the system displays a characteristic log. In this log, you can determine why the valuation was not successful.

Manual Valuation

You have to manually valuate if:

If you valuate manually, you execute the valuation function on the characteristic overview screen or on the characteristic single screen. The dialog box for manual valuation appears.

Evaluating Formulas

Calculated characteristics are automatically evaluated during the valuation.

For more information, see Formula Evaluation .

Calculating Share of Defects

When you valuate a characteristic, the share of defects is automatically calculated for the characteristic. The share of defects for a characteristic is used in some quality score procedures to calculate the quality score.

For more information, see Calculating Share of Defects .

See also:

Single Functions

Valuation Procedures