The 7 Basic Quality Control Tools

Quality is a very important ‘quality’ for successful businesses to uphold. It is vital that customers are given products and services that are helpful for them and therefore worth every penny they pay. In order to be successful in business, you need to remember that customer satisfaction is always the most important goal.

To ensure the best possible products and services are sold to customers at a consistent level, businesses should take control and monitoring measures. It is also crucial to use the 7 basic quality control tools. These implements can help maintain the consistency of the products and services being produced. Learn more about these 7 methods and implements in the following article; Cause-and-effect diagrams, Check sheets, Control charts, Histograms, Pareto charts, Scatter diagrams, and Stratification.

The seven basic quality control tools are composed of various statistical methods and treatments. They include different kinds of graphs, charts, and diagrams. One of the most basic quality tools is the cause and effect diagram. This is also referred to as the fishbone diagram or Ishikawa diagram. This helps employees discover the possible causes of problems or the factors that affect a desired outcome or goal. Each fishbone in the diagram represents a category.  

A check sheet is the second of the 7 basic quality tools. This chart is used for collecting data in the present time and in the actual location of the data. The chart is useful for both quantitative and qualitative data. When quantitative data is being obtained, it is referred to as the tally sheet. Basic formats are followed that entail proper placement of pertinent information like who, what, when, where, and why. It can be used as a measure of probability distribution, as a checklist, and to quantify defects.

Companies also often use a control chart when it comes to quality improvement. This chart is used for monitoring and ensuring statistical control. It will have certain measurements and limits, and when the measurements go beyond limits, this will signal a variation. The chart is also useful for tracing the cause of any possible variation.

Histograms are also used often. The histogram is used for showing a probability distribution graphically. The distribution of the collected data would be presented in the graph form. It can also be used to show frequency of certain categories or factors.

The Pareto chart is among one of the most beneficial basic quality tools used by companies. This is a way of prioritizing the most important issues or factors that affect a business. This chart employs both a line and a bar graph and has two vertical axes.

The scatter diagram is a vital quality tool, as well. It is used for showing a relationship between two factors; either causation or correlation. It can also show a degree of correlation through the measurement of the slope.

Stratification is the final of the seven basic quality control tools that can also be used. This technique is used for categorizing data systematically.

These 7 basic quality control tools are very useful for businesses and something that every business owner should be familiar with. It is crucial for businesses to make the most out of these statistical methods; it will help in optimizing efficiency and use of resources in order to yield consistently high profits and successful processes.