December 2002
Intermediate to advanced
848 pages
20h 22m
English
Content preview from The Six Sigma Handbook, Revised and Expanded, 2nd Edition
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13.2. ESTIMATING PROCESS YIELD
13.2.1. Rolled throughput yield and sigma level
The rolled throughput yield (RTY) summarizes defects-per-million-opportunities (DPMO) data for a process or product. DPMO is the same as the parts-per-million calculated by Minitab. RTY is a measure of the overall process quality level or, as its name suggests, throughput. For a process, throughput is a measure of what comes out of a process as a function of what goes into it. For a product, throughput is a measure of the quality of the entire product as a function of the quality of its various features. Throughput combines the results of the capability analyses into a measure of overall performance.
To compute the rolled throughput yield for an N-step process (or ...
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