Quality Management Scoring

Question

Hi All,
Can anybody explain me how the system calculates Quality score (which gets reflected in Vendor Evaluation)?.....any formula or principles etc
Is there any configuration setting the QM side which helps in controlling that score?
Requirment - It is intended that one critical defect should not be easily overcome by success on other less critical tests. Currently, it has been set in QM as such the quality score is getting 80 irrespective of pass or fail of many tests
Thanks

Answer 1

Hello,
The score *Goods Receipt (main criterion quality)* is calculated as follows:
1.     If a material is subject to incoming inspection, part of the delivered material is checked by the quality assurance department when goods are received against a purchase order.
2.     An inspection lot is created. After the inspection or testing, the person responsible in Quality Management then enters a result and makes a decision as to whether the material can be used.
3.     All the incoming inspection lots are stored in a file with their scores.
4.     When you run an automatic re-evaluation for a vendor, the system selects all the incoming inspection lots for the vendor that lie within the validity period and calculates the average of the scores.
The result is the vendor's score for the quality of goods received.
The *Quality Audit (Main Criterion "Quality")* score is calculated as follows:
A quality audit has taken place in one of your vendor's plants. This means that either your own company has carried out a check to determine how the vendor ensures that his products are of a high quality, or the vendor has carried out the audit himself.
1.     An audit lot is created by Quality Management. When the audit has been completed, the person responsible determines a score for this audit lot.
2.     All the audit lots are stored in a file with their scores.
3.     When you run an automatic re-evaluation of a vendor, the system selects all the audit lots for the vendor within the validity period.
4.     The parameter Quality audit is read from Customizing.
5.     If the indicator is set, the system calculates the average score for all the quality audits in the validity period. The result is the vendor's score for the quality audit.
If the indicator is not set, only the most recent audit lot is included. This then represents the vendor's score for the subcriterion.
The Evaln. QM system field on the screen for the main criterion "Quality" shows you the score that was awarded to the Quality Management system (e.g. ISO 9003 with certificate) used by the vendor. It is only displayed if the Prev. QM system field is filled in the vendor master record. The score is awarded by the QM system and is for information purposes only. Display the vendor master record to see which quality system the vendor uses. You can use the content of the field for your own program and have this score included in the vendoru2019s quality score.
Complaints/Rejection Level (Main Criterion "Quality")
The score for the subcriterion Complaints/Rejection Level is computed by the SAP component QM Quality Management and passed on to the MM Vendor Evaluation component.
If the scale for the key quality data in the QM system does correspond to the scoring range in Vendor Evaluation, the Vendor Evaluation system converts the QM data for use in the Vendor Evaluation scoring system.
The score is calculated as follows:
9.     On the shop-floor, material A supplied by vendor ACME is being processed in the course of production.
10.     If the material is OK (that is to say, no quality notifications have been entered for material A during the entire validity period), the vendor is awarded the highest score for the material (100 points).
11.     If the material is found to be defective, a quality notification (such as a rejection note or nonconformance complaint sent to the vendor) is entered.
12.     During the vendor evaluation process, the system checks whether the costs associated with the faulty delivery exceed the maximum percentage of business volume defined in the Customizing system.
In the above example, your business volume with (value of purchases from) ACME amounts to one million dollars annually. The costs associated with defective deliveries may not exceed 0.1 percent of business volume, i.e. $100,000. The costs associated with a quality notification are estimated at $500.
13.     If the costs that your company incurs as a result of the faulty materials are lower than the defined proportion of business volume, the system calculates a score between 1 and 99 points.
To do this, the system multiplies your annual business volume with the vendor ($1,000,000) by the parameter Business volume share (0.1).
The number of accumulated quality notifications (10 in all) multiplied by the cost of each notification ($ 500) is subtracted from this.
The result is divided by the annual business volume multiplied by the proportion of business volume.
The result of this is a factor which, multiplied by a hundred, gives a percentage.
This percentage indicates the quality provided by the vendor in relation to the particular material. The value 95% in the above example means that complaints or rejections involving the vendor ACME only resulted in 5% of the maximum costs allowed, i.e. the quality is very good.
Note on Scoring Range and Conversion QM - MM:
Since the minimum points score that can be obtained is not 0 (0 means "not evaluated") but 1, only 99 points are available in the range 1 to 100.
This is why the system works out how many points out of 99 the value 95% corresponds to.
The result is 94 points.
Since the bottom of the scoring range has been moved up by one point (1 point is the worst score not 0), the system adds on 1 point.
ACME therefore achieves a score of 95 points for the subcriterion Complaints/Rejection Level for material A.
14.     If the cost of defective or non-conforming deliveries exceeds the share of business volume defined in Customizing (in this case $100,000), the vendor is awarded the lowest score (1 point).
The score for the subcriterion Complaints/Rejection Level is computed by the SAP component QM Quality Management and passed on to the MM Vendor Evaluation component.
You can find this information in help.sap.com
I hope it helps!
Best Regards,
Arminda Jack