QUALITY CONTROL

1. “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

2. 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

3. 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.
WHEN SHOULD YOU USE 7 QC TOOLS?
7 QC tools can be carried out during the quality management, quality
improvement process, six sigma implementation processes or even
the regular PDCA cycle for the quality purpose for enhanced quality
management.
In the first phase of measuring and identifying, Fishbone Diagram also
known as cause and effect diagram, Pareto Chart and Control Chart
can be utilized. In the next phases of assessment and analysis,
Scatter Diagram, Histogram and Checklist can be carried out. The
Control Chart can be utilized consistent quality improvement.
BENEFITS OF 7 QC TOOLS
The 7 QC tools are structured and fundamental instruments that help
businesses improve their management and production process for
achieving enhanced product quality.
From assessing and examining the production process, identification
of key challenges and problems to controlling the fluctuation present in
the product quality and providing solutions for prevention of defects in

4. future, the easy to understand and implement, 7 QC tools are very
effective. Some of the major business benefits of 7 QC tools are listed
below.
 Provides a more structured path for problem-solving and quality
improvement
 Easy to understand as well as implement yet extremely effective
 A scientific and logical approach for problem-solving
 Follows the 80/20 rule i.e. gain 80% result with 20% efforts
 Improve the quality of product and services
 Helps in identifying and analyzing problems during the process
 Fishbone training aides in root cause analysis and problem-solving
 Encourages team spirit and fosters a healthy culture
 Identifies roots cause and solve it permanently
 Enhance customer experience and customer satisfaction
Based on the data-driven process and customer-centric approach, 7
QC tools implementation is one of the most effective processes that
too in the shortest amount of time.
4C team of certified professionals has provided 80+ implementation of
7 QC Tools and 120+ 7 QC Tools Training. By solving 200+ quality
problems, 4C has empowered clients to reduce the 80% cost of poor
quality. To accelerate your quality management process and reduce
your cost of poor quality, contact our experts now.