Defining Statistical Quality Control
The control chart is a graph used to study how a process changes over time. Data are plotted in time order. A control chart always has a central line for…
Control charts
Control charts have long been used in manufacturing, stock trading algorithms, and process improvement methodologies like Six Sigma and Total Quality Management (TQM). The purpose of a control chart is…
Scatter Diagram
Scatter Diagram or correlation diagram is a tool to describe changes in a dependent variable in relation to any change in the independent variable. “A correlation chart that uses a…
CAUSE EFFECT DIAGRM IN INDUSTRY
Definition of Cause & Effect Diagram The cause & effect diagram is the brainchild of Kaoru Ishikawa, who pioneered quality management processes in the Kawasaki shipyards, and in the process…
Pareto Chart
The Pareto chart is a quality improvement tool that is based upon the Pareto principle, the principle that 80% of an outcome comes from 20% of its inputs. Vilfredo Pareto, an…
Drawing a histogram
A histogram is a graphical tool used to visualize data that can be produced with histogram software such as Quality America's SPC programs. A histogram graph is a bar chart, where…
Shapes of histogram
A histogram can be created using software such as SQCpack. How would you describe the shape of the histogram Bell-shaped: A bell-shaped picture, shown below, usuallypresents a normal distribution. Bimodal: A bimodal shape,…
Histogram
Having been in the project management, training and coaching for over last many years, I witnessed that- The histogram is one of the powerful Quality planning and control tool to…
Check Sheets
The Check Sheet is a simple document that is used for collecting data in real time and at the location where the data is generated. The document is typically a…
Concepts Process Quality
Process quality refers to the degree to which an acceptable process, including measurements and criteria for quality, has been implemented and adhered to in order to produce the artifacts. Software…
