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7 QUALITY CONTROL TOOLS FOR PROCESS IMPROVEMENT

 “As much as 95 per cent of all quality-related problems in the factory can be solved with seven fundamental quantitative tools.”

-Kaoru Ishikawa, The inventor of Fishbone Diagram

In today’s customer-centric market, quality is an integral factor in the growth and sustainability of any business. Businesses go the extra mile to provide the best and excellent customer experience to ensure customer satisfaction. Hence, efficient quality management which has the highest impact on customer experience is one of the most essential features for any business.

Introduced by Kaoru Ishikawa, the seven basic tools of quality also known as 7 QC tools are very effective in quality management and quality assurance process. So, businesses who want to ensure competitive and excellent quality of their products and services can utilize the proven 7QC tools for structuring a strategic plan for quality improvement.



LIST OF 7 QC TOOLS

Cause and Effect Diagram

Cause and Effect Diagram also known as Fishbone Diagram helps in identifying the potential causes of an effect or a problem. In addition to sorting ideas in respective categories, it also helps in understanding the areas of opportunity through effective brainstorming. Fishbone training empowers you to identify the potential cause in the problem.

Control Chart

Control charts are used to study how the processes have changed over a period of time. Further, by comparing current data to historical control limits, one could lead to the conclusion about whether the process variation is consistent as in under control or unpredictable as in out of the control due to being affected by special causes of variation.

Pareto Chart

Pareto Chart is based on the 80/20 rule where it shows the significant factors that have the highest impact on the identified problem.

Check Sheet

Check sheet is a structured process which helps to collect and analyzing data. It is an effective tool that can be for a variety of purposes.

Histogram

Histogram is commonly used a graph that shows the data and its frequency of distribution to help users identify each different value in a set of data occurs.

Scatter Diagram

Scatter diagram shows the relationship between two important factors i.e. pairs of numerical data, one variable on each axis to demonstrate the relationship.

Stratification

Stratification also known as a flow chart or run chart is a technique that separates the data gathered from a variety of sources so that patterns can be seen i.e., the path an entity has taken through a defined process.

Utilizing the 7 QC tools in six sigma or quality management process helps in taking a systematic approach to identify and understand the risk, assess the risk, control fluctuation of product quality and accordingly provide solutions to avoid future defects.

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