Mastering Quality Tools For Improved Efficiency And Productivity
Are you always trying to make your business successful, but you never think about using quality tools? While some may argue that a top-notch product or service is the secret ingredient, others argue that a killer marketing strategy takes the cake. Well, what about the often overlooked yet crucial aspect of quality management?
Read this blog post to find out about the most important tools for quality management and how putting them to use in your business can make it more efficient and productive.
1. What do you mean by “quality tools”?
Quality tools are a powerful set of methods that organizations use to measure, evaluate, and assess quality. Is it really such a big deal? Well, it is. Quality tools not only help organizations save time and increase efficiency but also help improve the quality of their overall product or service. And this is really important in a long-term business.
2. Identify different types of quality tools, including statistical, graphical, and process control tools
Quality control is the set of tools that are used to keep an eye on and control the quality of a product. Knowing the different types of quality control tools is vital for effective quality assurance. There are statistical, graphical, and process control tools that make up the “seven basic tools” used in quality control.
Popular statistical quality control methods include control charts, which help track trends over time in quantitative or qualitative data.
Bar graphs, scatter diagrams, and Pareto charts are all examples of graphical tools that show data in a visual way.
Process control makes sure that production goes according to plan by watching each step of the process to make sure it works well enough.
Other common tools for quality control are check sheets and cause-and-effect diagrams, which help figure out why problems or defects happen.
3. Which are the 7 QC tools?
Let’s talk about each other, one by one.
1) Scatter Diagram
The first one, and maybe the most used, is a scatter diagram, which is a tool that helps you identify and analyze the relationship between two variables. It plots pairs of values on a graph to identify potential trends and correlations. This allows you to better understand the data, identify trends, and make informed decisions.
When making a scatter diagram, you need to choose two variables to analyze (on the x- and y-axes). The variables can be anything related to your process, such as time and cost or temperature and pressure.
You then plot the points on the graph using a scale for each variable. If there is a positive correlation between the two variables (meaning when one goes up, the other goes up too), the points will form a line from the bottom left to the top right.
On the other hand, if there is a negative correlation (when one goes up, the other goes down), the points will form a line from the top left to the bottom right.
2) Histogram
A histogram is a type of graph that displays the frequency distribution of a set of data. It represents a range of values by dividing the range into “bins” and then counting the number of values in each bin. For example, if you wanted to look at the distribution of heights among a group of people, you could make a histogram with height as the x-axis and the number of people as the y-axis.
Histograms are a useful tool for quality control because they allow you to easily see any trends or patterns in the data. You can identify outliers or areas where your process might need improvement.
3) Check Sheets
Check sheets are a type of quality control tool used to collect data about a process, product, or system. A check sheet is typically a form or spreadsheet that is filled out by personnel to track and record specific occurrences.
Check sheets are used to analyze the performance of a process or system. By keeping track of each event, a pattern can be found that shows where changes or improvements need to be made. Check sheets can also help you find patterns or places where you might need to make changes.
The goal of a check sheet is to make it easy and quick to keep track of information and make regular reports.
4) Cause-and-Effect Diagram
Ishikawa diagrams are a type of cause-and-effect diagram that is used in quality control to find the root cause of a problem or issue. They are useful for making connections between different factors that could be causing the problem. The diagram is made up of several components that are used to brainstorm and map out the relationship between multiple variables.
The diagram consists of a number of boxes connected with arrows, with each box representing a variable that is either causing or affecting the problem.
The arrows represent the relationships between the variables, showing how changes in one variable can cause changes in another. Each variable can be broken down further into individual components to help get to the root cause of the issue.
They are especially helpful when there are a lot of moving parts in a process and it’s hard to find the exact cause.
5) Pareto Chart
The Pareto chart is a tool for quality control that helps find the most common mistakes or mistakes that cause the most mistakes in a process. It is based on the Pareto Principle, which states that 80% of problems are usually caused by 20% of the root causes.
To create a Pareto chart, you need to collect data on each defect or cause, and then arrange them in descending order from most common to least common.
Once you have the data, you can create a bar graph with the individual frequencies, and then add a line graph to show the cumulative percentages.
6) Flowchart
Flowcharts are pictures that help people figure out how to solve problems. It shows the steps in a process and the order in which they should be completed. The flowchart is a great way to visualize how different parts of a system interact with each other.
Each step must be clearly defined, and all possible outcomes must be considered.
Connecting arrows and symbols can help represent the different choices or paths that can be taken in the process. Additionally, it is helpful to label each box in the flowchart so that everyone can easily follow along.
7) Run Chart
Run charts are used to track changes over time, such as the number of defects in a process or the rate of customer complaints. The run chart is created by plotting data points on a graph. This allows you to identify patterns and trends over time.
By studying the run chart, you can determine whether the variation is consistent with the process or is indicative of a problem that needs to be addressed.
4) Conclusion
In conclusion, mastering the seven basic quality tools is crucial for improving efficiency and productivity in any business setting. From utilizing a control chart to identify and track process variation to implementing process improvement strategies, these tools are key to staying ahead of the competition and reaching new levels of success. Don’t just take our word for it; put these tools to the test and see the results for yourself. Trust us, you won’t be disappointed.
About the Author
Liviu Prodan
Liviu is an experienced trainer and LifeHacker. He’s been living the ‘Corpo life’ for more than 15 years now and has been a business developer for more than 12 years. His experience brings a lot of relevancy to his space, which he shares on this blog. Now he pursue a career in the Continuous Improvement & Business Development field, as a Lean Six Sigma Master Black Belt, a path that is coherent with his beliefs and gives him a lot of satisfaction.