| US 7,565,266 B2 | ||
| Web-based system of product performance assessment and quality control using adaptive PDF fitting | ||
| Hongsee Yam, Singapore (Singapore); Teck Heng Lim, Singapore (Singapore); Hwaliang Ng, Singapore (Singapore); and Timothy ChinSoon Yoap, Singapore (Singapore) | ||
| Assigned to Seagate Technology, LLC, Scotts Valley, Calif. (US) | ||
| Filed on Feb. 14, 2006, as Appl. No. 11/353,739. | ||
| Prior Publication US 2007/0192060 A1, Aug. 16, 2007 | ||
| Int. Cl. G06F 19/00 (2006.01) | ||
| U.S. Cl. 702—181 [702/105; 700/28; 700/30; 703/6] | 32 Claims |
| 1. A method comprising:
receiving data for a product;
fitting the data with a plurality of probability density functions (PDFs);
selecting a PDF that best fits the data;
generating one or more performance capability parameters for the product based on the best fitting PDF;
generating a report that presents at least one of the performance capability parameters; and
adjusting statistical control limits for the product based on the data, wherein adjusting statistical control limits comprises:
generating a first set of data samples using the selected PDF,
calculating new control limits from the first set of data samples,
generating a second set of data samples,
determining an average run length (ARL) value from the second set of data samples and the new control limits, and
comparing the determined ARL value to an acceptable ARL value.
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