Tag: DPMO

What does it mean to be “Six Sigma”? Six Sigma at many organizations simply means a measure of quality that strives for near perfection. However, the statistical implications of a Six Sigma program go well beyond the qualitative eradication of customer-perceptible defects. It’s a methodology that is well-rooted in mathematics and statistics. What […]

Use this table to go between and convert Sigma to DPMO to Yield to Cpk.

Lean Six Sigma professionals, much like every other professional, love to talk in acronyms. The acronym of the day is DPMO. Let’s check out what it means.

How do you convert DPMO to Sigma Level? There are several metrics you can use to measure how well your process is performing. Let’s look at three of them and discuss how to calculate them and how they relate. The three are DPMO, Sigma Level, and Cpk. Convert DPMO/Sigma to Cpk  Before discussing […]

When learning about Six Sigma, it may help to consider these charts. These detail how Sigma Performance Levels relate to defects per million opportunities (DPMO), and some real-world examples. Sigma Performance Levels Table Sigma Performance Levels – One to Six Sigma Sigma Level Defects (or Errors) Per Million Opportunities (DPMO) Yield (or Produced […]

So what is the real difference when looking at Cpk and Sigma Level? If you’re new to Six Sigma, there is no shortage of acronyms and calculations to keep in mind as you work on your knowledge base. Both Cpk and Sigma Level are valuable tools when looking at your processes and production. […]

This article is the last of four parts. It presents a discussion of opportunities for defects (OFD), defects per million opportunities (DPMO) and Sigma levels. When comparing implementations across companies, using the common language of DPMO and Sigma levels will assist in understanding benchmarking data. Parts one, two and three followed a progression of goals […]

Imagine the scenario. Herman and Gary both manage processes for your company. Herman’s process involves a simple matching of supplier invoices to purchase orders. Gary’s process is much more complex. This process involves compliance to government regulations and requires massive amounts of data to be taken, accurately summarized and reported in several different formats to […]

For any process improvement program, effective resource planning is key. A measurement system that will determine the benefit of internal projects from an HR perspective might be particularly helpful in implementing project goals for IT departments.

In manufacturing, key quality indices – performance capability index (Cpk), defects per million opportunities (DPMO) and first pass yield (FPY) – are prevalent criteria for gauging the performance of products and processes. These indices however, often are interpreted wrongly and used without taking into account the conditions of application. Moreover, alternative indices such as rolled […]

One of the most popular metrics used in assessing Six Sigma projects, both DMAIC (Define, Measure, Analyze, Improve, Control) and Design for Six Sigma (DFSS), is defects per million opportunities (DPMO). This measurement is the average number of defects per unit observed during an average production run divided by the number of opportunities for making […]

The definition for Six Sigma was clear from the beginning – 3.4 defects per million opportunities (DPMO), allowing for a 1.5-sigma process shift. But the definition for zero defects is not so clear. Perhaps zero defects refers to the domain beyond 3.4 DPMO. Or perhaps it refers to designing defects out of the process or product, […]

An organization is always successful in its journey towards business excellence if it has specific goals for each of its critical processes. Various quality management programs adopted and implemented by such an organization can streamline the activities towards the ultimate goal of business excellence. When the quality improvement program is Six Sigma, the goal for […]