Run Charts Introduction

OverviewRun charts are one of the most useful tools in quality improvement. They allow us to: Monitor the performance of one or more processes over time to detect trends, shifts or cycles. Allow us to compare a performance measure before and after implementation of a solution to measure its impact. Focuses attention on truly vital […]

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Histogram Introduction

Most of us (Quality Professionals) deal with data in our day to day operations. Often, we come across situations where we have to analyze data and interpret to management about the behavior of certain groups of items. To present the data in a simple and catchy manner, we use graphical tools sometimes. There are a […]

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Statistical Process Control (SPC) Introduction

Statistical Process Control or SPC was first coined and introduced by Walter A. Shewhart in the early 1920s and over a period of time, further developed into a strong conceptually proven process. The term Statistical Process Control has a simple meaning – a Process controlled using statistical tools. In SPC we use mostly the two statistical tools […]

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Pareto Chart and Pareto Analysis

The Pareto principle also known as the 80-20 rule derived from the Italian economist Vilfredo Pareto’s observations about the factor of sparsity which states that 80% of the effects are coming from 20% of the causes. This also holds true to the business’ rule of thumb that 80% of the sales are contributed by only […]

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