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Short Method

Measurement system evaluation in the Repeatability and Reproducibility study, but using a reduced amount of operators and parts.

Parts	Operator A	Operator B	Amplitude (R)
1	XA	XB	XA - XB
2	XA	XB	XA - XB
3	XA	XB	XA - XB
4	XA	XB	XA - XB
5	XA	XB	XA - XB

Average Amplitude Linha Microsiga Protheus - Inglês > Short Method-qmta150_metodo_curto.htm > qmta150_metodo_curto1_ing.jpg and for 02 operators

and 05 parts => d2 = 1.19, thus: Linha Microsiga Protheus - Inglês > Short Method-qmta150_metodo_curto.htm > qmta150_metodo_curto3_ing.jpg

Process Variation = Linha Microsiga Protheus - Inglês > Short Method-qmta150_metodo_curto.htm > qmta150_delta_p_ing.jpg

Where: Linha Microsiga Protheus - Inglês > Short Method-qmta150_metodo_curto.htm > qmta150_delta_p_ing.jpg = Specified Higher Limit - Specified Lower Limit

All calculations are based on an 5,15 standard deviation estimate (99.0% of the area under the normal curve).

Suggested R&R limits:

•	from 0% to 10% - GOOD Measurement System;

•	from 10% to 30% - ACCEPTABLE Measurement System;

•	Above 30% - UNACCEPTABLE Measurement System.

For this evaluation, a minimum of 5 parts and 2 operators are required, while the traditional method (long method) requires 2 cycles and that the number of parts and operators is higher than 15.