Hierarchy
BBPCRM (Software Component) BBPCRM⤷
CRM (Application Component) Customer Relationship Management⤷
CRM_APPLICATION (Package) All CRM Components Without Special Structure Packages⤷
QL (Package) QM inspection lots
Basic Data
| Data Element | QAUSANTEIL |
| Short Description | Share of Scrap in Inspection Lot |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | QFLTP16 | |
| Data Type | FLTP | Floating point number, accurate to 8 bytes |
| Length | 16 | |
| Decimal Places | 16 | |
| Output Length | 22 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | INSPLOT_FRACTION_NONCONFORMING | |
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | Share |
| Medium | 15 | Share of scrap |
| Long | 20 | Share of scrap |
| Heading | 16 | Share of scrap |
Documentation
Definition
Estimated fraction of nonconforming units in the population.
A unit is nonconforming if it has at least one defect or if the attribute of a characteristic does not conform to the requirements.
The fraction of nonconforming units is a number between 0 and 1. For better understanding, this number is displayed as a percentage value between 0% and 100% or in ppm (parts per million).
Example
The fractions 10 ppm, 0.001%, 0.00001 are different in the method of notation only.
Use
In a sampling inspection, the fraction of nonconforming units in the lot to be inspected can only be estimated.
For inspection lots with characteristics results recording, the fraction of nonconforming units is determined as a first step for each individual characteristic. In the plan, you can specify how this is to be carried out for each characteristic.
You can choose one of the following methods:
- Calculate the fraction of nonconforming attributes as a quotient of nonconforming attributes and conforming attributes.
- Estimate the fraction outside the tolerance using the mean value and standard deviation and by accepting a normal distribution of original values.
- Estimate the fraction of units with defects using the number of defects and by accepting a Poisson distribution of defects.
- Customer-specific procedures
As a second step, the fraction of nonconforming units for the individual characteristics is compressed into a fraction of nonconforming units in the lot. It is assumed that the characteristics are independent of one another. Given that pi is the fraction of nonconforming units for characteristic i, then the fraction in the lot is calculated on the basis of the following formula:
Fraction in lot = 1 - ((1 - p1) * (1 - p2) * ... )
You can use control indicators to exempt individual characteristics from the formula.
Example
Characteristic 1 20% fraction
Characteristic 2 10% fraction <-- not relevant
Characteristic 3 10% fraction
Lot 28% fraction
For lots without characteristics results recording, the fraction of nonconforming units in the lot is determined for discrete units of measure only (units without decimal places, for example, a piece).
The fraction is estimated on the basis of the number of inspected units and the number of units found to be defective in the inspection. It is assumed that defects do not occur often and their occurence can be described by a Poisson distribution.
Example
Units inspected = 10, number of defects = 2, estimated fraction in lot = 18.5%
With non-discrete units of measure (units with decimal places, for example, liters or kilograms), a fraction of nonconforming units is not determined.
History
| Last changed by/on | SAP | 19980414 |
| SAP Release Created in |
