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DMAIC: Measure

DMAIC: Measure. Robert Setaputra. Measure. The measure phase begins with the identification of the key process metrics. Once the key process metrics have been specified, related process and customer data is collected. Purpose of Measure Phase. To validate the data

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DMAIC: Measure

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  1. DMAIC: Measure Robert Setaputra

  2. Measure • The measure phase begins with the identification of the key process metrics. • Once the key process metrics have been specified, related process and customer data is collected.

  3. Purpose of Measure Phase • To validate the data • To help the team narrowing the range of potential causes need to be investigated in Analyze phase.

  4. Framework Statistical Problem Statistical Problem Statistical Problem Business Problem Business Problem Business Problem Measurement Business Solution Business Solution Business Solution Statistical Solution Statistical Solution

  5. Measurement System Analysis • MSA is a study to determine the extent and acceptability of system measurement • 5 Properties • Biasness • Stability • Linearity • Repeatability • Reproducibility

  6. Gage R&R • Repeatability & Reproducibility (R&R) • Repeatability • Variation that is due to the measurement device (same operator, same part, same device). • Within person variation. • Reproducibility • Variation that is due to the measurement system (different operators, different parts, same device). • Between person variation

  7. Gage R&R Study Design (Crossed Design) • Select a set of representative parts. • Select a group of operators to measure the parts. • Ask the operators to measure for each part repeatedly. • Ex. 5 parts, 2 operators, and 4 replicates.

  8. Gage R&R using Minitab • Gage R&R Run Chart • Gage R&R Study (Crossed) – ANOVA • Gage R&R Contribution • Exercise: • Table 5.6 (p. 121) • Table 19.6 (p. 617)

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