Six Sigma Tools Archives - 6sigma https://6sigma.com/category/six-sigma-tools/ Six Sigma Certification and Training Fri, 28 Feb 2025 06:16:06 +0000 en-US hourly 1 https://6sigma.com/wp-content/uploads/2021/03/cropped-favicon-blue-68x68.png Six Sigma Tools Archives - 6sigma https://6sigma.com/category/six-sigma-tools/ 32 32 RCA Moves You Closer to The Truth https://6sigma.com/rca-root-cause-analysis-quality/ https://6sigma.com/rca-root-cause-analysis-quality/#respond Fri, 28 Feb 2025 06:16:06 +0000 https://opexlearning.com/resources/?p=26789 RCA Root Cause Analysis

It is said that somewhere between Point A and Point B lies the truth. Finding that elusive point of fact is one of the most challenging opportunities in quality management. Everyone has their view of how things are and their opinion […]

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RCA Root Cause Analysis

It is said that somewhere between Point A and Point B lies the truth. Finding that elusive point of fact is one of the most challenging opportunities in quality management. Everyone has their view of how things are and their opinion is what they perceive to be the truth. If you ask ten different employees why they all complete the same task, you will get ten differing opinions. Each opinion will be fully supported by what they perceive to be the facts. Unfortunately, in most cases, you get ten different opinions that are just slightly different than the fact you are seeking. Nobody will be intentionally deceiving you, and they are confident that their facts are the truth. It is simply human nature. However, for businesses to be successful, they must operate on facts and not perception of fact. Getting to the facts is the goal of using the RCA.

Root Cause Analysis (RCA) is a valuable tool in quality improvement for identifying the underlying causes or facts of a issue or incident so proper solutions can be identified and implemented. It is a tool designed to identify not only what happened and how it happened, but also why. When you truly able to determine the facts of why an event happened, then you be be able to apply workable corrective actions to prevent future events. Some organizations mistakenly interpret the term root cause’ to mean there is one root cause of an issue. Nothing could be further from the elusive truth. Focusing on one cause can easily allow you to implement a solution that misses the problem all together. The root’ of a plant is not singular, so the root cause of a problem typically is not singular. 

RCA Cause Mapping Method

Define – What is the problem? Define the issue or event by the impact on the goals.

Analyze – Why did it happen? Use a cause map to visually represent the issues.

Solve – What will be done? Make effective solutions that change how the work is executed.

The most effective cause map is a simple one, which illustrates the how and why an incident or event occurred. Begin the exploration of the 5 Why’s and expand that into as much detail as necessary. The more complex and challenging an issue, the more times you ask why. The RCA cause map will allow you to understand the issue and create a visual dialog. It will show where there needs to be a bit more exploration of the roots to find the truth.

An effective RCA process moves past the typically excuses of human error’ and procedure not followed’ that many organizations tend to use as excuses. It is a deep dive that can result in true quality improvement for the organization.      

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[VIDEO] RCA Uncovers the Hidden Truth https://6sigma.com/video-rca-uncovers-the-hidden-truth/ https://6sigma.com/video-rca-uncovers-the-hidden-truth/#respond Fri, 28 Feb 2025 06:16:05 +0000 https://opexlearning.com/resources/?p=26791 rca, root cause analysis

If you don’t ask the right questions, you don’t get the right answers. A question asked in the right way often points to its own answer. Asking questions is the ABC of […]

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If you don’t ask the right questions, you don’t get the right answers. A question asked in the right way often points to its own answer. Asking questions is the ABC of diagnosis. Only the inquiring mind solves problems.

Edward Hodnett (1871-1962 British Poet)

RCA is a valuable tool used to uncover the facts and get to the root of a problem. When you understand that a problem typically does not have a singular root, but like the root of a plant, it has multiple elements that make up a root system. Each shoot of the root system is a problem or cause of a problem. It requires a deep dive to explore the root system and accurately understand all elements of the issue or incident.

Check out this video on RCA!

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https://6sigma.com/video-rca-uncovers-the-hidden-truth/feed/ 0 Voice of the Customer: Are We Asking the Right Questions? https://6sigma.com/voice-of-the-customer-are-we-asking-the-right-questions/ https://6sigma.com/voice-of-the-customer-are-we-asking-the-right-questions/#respond Fri, 28 Feb 2025 06:05:51 +0000 https://opexlearning.com/resources/?p=22275 customer, voice of the customer, customer service, business, shmula blog

When considering Voice of the Customer (VOC) initiatives in your organization, are you focused and asking the right questions? Lack of direction and unclear communications create results that produce failure for both the organization and their […]

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customer, voice of the customer, customer service, business, shmula blog

When considering Voice of the Customer (VOC) initiatives in your organization, are you focused and asking the right questions? Lack of direction and unclear communications create results that produce failure for both the organization and their customers. The real goal of any organization is to be profitable, but when we don’t really listen to the end-users of our product or services, failure is the typical outcome. The simple act of not listening has caused the decline of revenue and profit for organizations, that otherwise offer a superior service or product.

Ask a Customer the Right Questions

Customers simply are looking to satisfy basic human needs with our products or services. In today’s digital age, those communication channels are everywhere, coming into the organization through multitudes of channels. In the course of a simple conversation, a customer will easily divulge information that is vital to the success of the organization. The key is asking the right questions to get the conversation flowing.

To ensure success with the VOC program in an organization, there are three questions that will help you focus the research:

1. What do you want to know? – Have a clear understanding of what information you want from a customer conversation.

2. Who do you want to hear from? – Determining the right group of customers that can answer your questions is crucial.

3. What are you going to do with the information? – Understanding how you are going to take action with the information gathered is critical.

Translating the Conversations

Through these conversations, organizations typically gather generic customer needs. They must take those conversations and go on to translate these generic needs into specific items called critical-to-quality requirements (CTQs). To verify that the CTQs are specific enough, the true test is to ask, Can a formula or detailed operational definition be written to describe this need? The needs should be detailed enough that they allow practitioners to align improvement or design efforts with customer requirements.

If you do not understand what you specifically need to know, you run the risk of not learning anything productive or useful to your VOC efforts.

Check out the “Voice of the Customer and CTQ” video >>>

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Professional Development: Are You Training to Get Results or Checking the Box? https://6sigma.com/professional-development-are-you-training-to-get-results/ https://6sigma.com/professional-development-are-you-training-to-get-results/#respond Fri, 28 Feb 2025 06:05:48 +0000 https://opexlearning.com/resources/?p=22081 professional development, lean six sigma, training, shmula blog

As a Lean Six Sigma professional, are you training to get results? Unfortunately, training is one of those things people do because they have to. Taking a training course will help meet the requirements for a promotion or […]

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professional development, lean six sigma, training, shmula blog

As a Lean Six Sigma professional, are you training to get results? Unfortunately, training is one of those things people do because they have to. Taking a training course will help meet the requirements for a promotion or advancement in responsibility. The thought process sometimes is just to take the course or finish the college work to meet a standard.

Training Is Your Most Valuable Asset

Here is the way you must approach training. Training has to become a deeply ingrained and practiced habit. Studies have shown that the most highly successful people spend between $10k-$20k per year, investing in their personal and professional development. It becomes a mindset. The most successful professionals understand that time equals money. Wasting time or spending it in a manner that does not achieve the highest level of results is just like wasting money. For them, training and professional development must be repetitive and of a frequency that deeply embeds the concepts they study. This reputation makes those concepts habits. Habits produce consistent performance.

For Lean and Six Sigma professionals, that means you cannot just take one Green Belt class or learn lean concepts within a workshop, and think that is sufficient to know the material. Consider taking the course multiple times from different sources and instructors. That is where the real learning will take place, and the concepts will start to sink into your long term memory. People often forget the networking benefits of taking classes from different organizations and instructors. Hearing the experiences and observations from your classmates are often as valuable as those from the instructor.

Here are some thoughts to keep in mind when you are approaching a training objective:

  • The first exposure to a training class will simply introduce a topic. Most of the content will be lost in your memory in a couple weeks.
  • The second exposure will highlight topics you missed in the first session, and remind you what you learned. More of the content will be remembered, but it won’t be clear how to apply all of it.
  • The third exposure starts to embed information into your mind and create relevant associations to the work you do. Most of the content will be captured in your long term memory, and you’ll be able to apply most of the concepts to your current job.
  • The fourth exposure enables you align more closely with the instructor and conceptualize the information, and think about how you would teach the topic to others, using your own experiences and examples.

As a Master Black Belt, I still go back and take classes that I’ve already taken. I recently took a Green Belt online course, and found it very valuable. I know the content already, but I learned some new ways to explain the concepts, to make it easier for students to understand. It also reminded me about some tools that I often skip or forget to use. It was a valuable use of my time, even though it seems like it would not be necessary.

Too often, I hear people say “but I took Green Belt training 5 years ago, why do I have to take it again?”

Maybe you’ve heard people in your company say something similar. This is the attitude of someone looking to “check the box” and not really learn and apply the content to their work. A mindset change is needed.

Getting Results from Professional Development

As you begin a training experience with Lean Six Sigma classes, get your mindset in order. Approach things in the same way as some of the most successful people from around the globe. Treat your time in the same way as you treat your money. Invest only in training that will improve you and make the most of professional development. Understand that the more difficult training courses should be retaken multiple times (from different instructors) to get the most value from the educational opportunity. Don’t view the retaking of classes as waste, rather think about how the class can serve you in a different way each time. Everyone brings to the table their unique experience and you will get a different perspective on the training objective.

Invest your time generously, and you will build a solid professional reputation and get the highest level of results in your work.

Speaking of training, have you checked out our Six Sigma video series or Toyota Lean training materials?

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Leader Standard Work: Are You Making White Space for What Is Important? https://6sigma.com/lean-standard-work-are-you-making-white-space-for-what-is-important/ https://6sigma.com/lean-standard-work-are-you-making-white-space-for-what-is-important/#respond Fri, 28 Feb 2025 06:05:47 +0000 https://opexlearning.com/resources/?p=21959 white space-productivity-timemanagement

Making time for what is important. That is the trick we all struggle with in our professional schedules. Many find that the demands on their time outpace the time available on the calendar. There are so many professionals out there that truly have […]

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white space-productivity-timemanagement

Making time for what is important. That is the trick we all struggle with in our professional schedules. Many find that the demands on their time outpace the time available on the calendar. There are so many professionals out there that truly have a scheduling problem. If you look at their calendars, you will find, more often than not, double and triple bookings of their time. The premise being that when that block of time comes up, they will just have to make a choice on what meeting is the most important at the time. Now, that may be the best solution, but what happens to the other meetings scheduled during that time? How do you get the monster under control and make white space’ for what is important? There are some straightforward strategies to get your time under control and make a priority for important tasks. The first thing is to understand how things get messy.

Making White Space for What’s Important

Operating under the premise is that you have a 40-hour work week and meetings take up a large portion or percentage of that week. Now the question is, is your job to attend those meetings and provide valued input? If you’re a consultant or advisor, then it seems you are on track. However, if your job is to produce things or supervise the production of things, you are not spending time on what is important, which is, to produce things. There is where the rub occurs.

The biggest problem starts with scheduling your work time. Get your schedule consistently lined out with the tasks you are required to do for work, which is, producing things. Block that time out and fiercely protect it. As you schedule the time to do work, then you also must add white space to address problems and issue. As a supervisor, manager, or executive, you will encounter problems or issues that require your attention. These events are either dealt with quickly or they go on a follow-up list and put on the back burner. If they go on the back burner, your business and customers can suffer when those problems are not addressed. When you have saved some white space, you will have time to deal with problems and issues in a timely manner. Problems and issues get fixed, and employees or customers feel their problems are heard and being dealt with.

The best approach you can take is to stop being the only decision maker. You have made yourself into the constraint, since there is only so many hours in a day. One of the key concepts of Lean is to empower employees to make their own decisions, so you don’t have to be involved in every meeting and decision. With proper coaching and mentoring on problem solving, you can raise the skill level of your employees to handle the day-to-day “fires,” so you can spend more time thinking strategically and long-term, which will free up your schedule. This also leads to better decisions by your employees, as they are closer to the problem than you.

Changing the Culture of Scheduling

So, first thing, take control of your schedule. Do not allow others to make your schedule. Block out your work time and put in enough white space to resolve the challenges of business. Protect those blocks of time with a passion, and delegate attendance to your staff who can better make the decisions. If they make the wrong decision (in your mind), then coach them for next time.

When you are aligning your work process with company goals, things will become easier and more efficient. Remember, a goal-oriented calendar with white space for problem resolution (that only you can decide upon) is the most effective tool you have available, and aligns perfectly with Lean quality management processes.

Learn more about the Management for Daily Improvement program, a  curriculum that will show you exactly how Toyota practices Lean (Toyota Production System).

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5S Tool: Celebrate National Clean Off Your Desk Day https://6sigma.com/5s-tool-celebrate-national-clean-off-your-desk-day/ https://6sigma.com/5s-tool-celebrate-national-clean-off-your-desk-day/#respond Fri, 28 Feb 2025 06:05:46 +0000 https://opexlearning.com/resources/?p=21830 5s tool, messy desk, disorganized, leadership, shmula blog

As you stare across the piles or paper and clutter that marks your workspace in the office, you get a feeling of resigned frustration. You know that this collection of organized chaos cannot possible be the best way […]

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5s tool, messy desk, disorganized, leadership, shmula blog

As you stare across the piles or paper and clutter that marks your workspace in the office, you get a feeling of resigned frustration. You know that this collection of organized chaos cannot possible be the best way to work, but it makes total sense to you. Others may see it as a disorganized mess, but you see a well organized system. Only you can decipher the code of chaos. Well, today is the day to make a change! Clear the minefield of chaos and restore order and discipline to that space you call a desk.

Using the 5S Tool to Restore Order

Today is National Clean Off Your Desk Day. To regain control over your workspace, it is the day to take action. Experts agree that the average worker has on average 36 hours of work in those mountains of clutter on the workspace. Those same workers spend about three hours a week searching’ the chaos for specific things they need to get the job done. What a waste!

Now it’s time to take charge and organize the chaos and clutter. We cannot think of a better tool to help you take control than the 5S Tool used with Lean Six Sigma methodology.

5S Tool

Sort – The first step is to go through all the clutter and determine what must be retained at the worksite. Only essential files, paperwork and documents are allowed to remain. When you find something that doesn’t belong, return it to the correct person or department or simply get rid of it.

Straighten – Now all you have left at the workspace are essentials. You must now give each of these a single, proper place. You’ve heard the saying, A place for everything, and everything in its place. That’s exactly what we’re talking about. Be creative and organized in establishing places for things so that returning an item to where it belongs is natural or easy.

Scrub – To help maintain the order you’ve created, thoroughly clean everything remaining at the workspace. The time and money spent on polishing or cleaning, will be returned manyfold in a more positive attitude and with greater productivity.

Standardize – Make things in your workspace consistent with files and organizers. Model your workspace after the most organized person in your work area. Find out how they organize and work to duplicate their system. If everyone does the process the same way, things will become significantly more efficient.

Sustain – This final step means to put a schedule and system in place for maintaining and refreshing the 5S’d workspace. It is your responsible to maintain and sustain.

The Dawn of a New Day

Your workspace is now clutter free, organized and streamlined. It is like a new day. You feel more refreshed and confident. You get things done quicker, with more accuracy. It feels great to come to work and you are proud of your space. Success is about habits and the 5S tool allows you to have a habit that is easy to practice. Now, let’s get to work!

Get your free download of the 5S tool here.

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Capability Analysis: The Power in Variables https://6sigma.com/capability-analysis-the-power-in-variables/ https://6sigma.com/capability-analysis-the-power-in-variables/#respond Fri, 28 Feb 2025 06:04:56 +0000 https://opexlearning.com/resources/?p=21138 The capability analysis is a valuable tool for Lean Six Sigma professionals. Every process has performance limits and variables. There is power in understanding those variables and variances that customers will tolerate. It offers a method of understanding these variables or limitations, and aligns them with customer expectations.

Understanding the Value of Capability Analysis

Understanding […]

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The capability analysis is a valuable tool for Lean Six Sigma professionals. Every process has performance limits and variables. There is power in understanding those variables and variances that customers will tolerate. It offers a method of understanding these variables or limitations, and aligns them with customer expectations.

Understanding the Value of Capability Analysis

Understanding the true value of the variables in a process can be defined by the capability analysis. The capabilities and value of a process can be determined by comparing the width of the process spread to the width of the specification spread. When a process is capable, the process spread is smaller than the specification spread. When the process is centered and within the specifications, it is more capable of consistently producing product that meets customer expectations. The benefits is that it offers a key measure of performance that is easily translated in a visual representation that is applicable across all industries. Further value of the capability analysis is that it estimates the proportion of product that does not meet specifications. It provides calculations for the percentage of the time your process will fall above the upper specification, or below the lower specification. This can be compared to the yield, to determine how many failures are due to variation (common cause), and how many are due to outliers and mistakes (special cause). It also provides a summary number that explains how capable the process is of staying within the specification limits (known as Cpk and Ppk).

Here is an example:

If we are collecting data on the weight of cereal boxes, and we have to meet specifications between 85 and 92, then you can see below that we will not always meet those specifications. Sometimes the data falls below 85 (about 2.45%), and sometimes the data goes above 92 (about 7.1%). Therefore, this process is not capable. It will fail to meet specifications about 9.55% of the time. We should expect a yield of only 90% unless we reduce variation, shift the average, or work with our customers to define new specification limits.

cereal_weight_capability1

If the process specifications were 80 and 100, then you can see below that the process would be capable. There is no chance that we will have data outside the specifications. This is performing close to a Six Sigma level (if the nearest specification is at least six standard deviations away).

cereal_weight_capability2

Bottom line, it summarizes a significant amount of information in one chart.

Finding Value for Customers

Statistically speaking, you are assessing the capability to make this highest quality product by comparing the width of the variation in your process with the width of the specification limits. The capability analysis is crucial to achieve this with your project. By using this tool, you will be able turn your efforts from just meeting established requirements to applying change that reaps true quality improvements that are consistent. Ultimately, you will be able to offer the highest amount of quality and customer satisfaction from your process with the lowest amount of variation.

Capability Analysis is a valuable tool across the Lean Six Sigma practice.  If you would like to learn more about Capability Analysis, consider the following items we offer: Histogram Generator (free), Process Capability (Intro and Advanced) eBook (Shmula Pro members), and Six Sigma training videos (Shmula Pro members). You can also attend a Green Belt or Black Belt training program, or Minitab training class.

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Chasing Quality: EHR Exposed Opportunities with FMEA https://6sigma.com/chasing-quality-ehr-exposed-opportunities-with-fmea/ https://6sigma.com/chasing-quality-ehr-exposed-opportunities-with-fmea/#respond Fri, 28 Feb 2025 06:04:53 +0000 https://opexlearning.com/resources/?p=20854 flea, lean six sigma, six sigma, quality improvement

 

Can Electronic Health Records (EHR) expose quality opportunities in our current Failure Mode and Effects Analysis (FMEA) mapping process? A recent study shows that EHR information can provide significant opportunities to improve FMEA mapping in the […]

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flea, lean six sigma, six sigma, quality improvement

 

Can Electronic Health Records (EHR) expose quality opportunities in our current Failure Mode and Effects Analysis (FMEA) mapping process? A recent study shows that EHR information can provide significant opportunities to improve FMEA mapping in the quality process. FMEA mapping simply outlines steps in any given process, then identifies and prioritizes the potential opportunities for failure. By using this systematic and prioritized method, teams can make consistent and continuous improvement. Conversely, when information is left unidentified in the FMEA, can real improvement be made?

Quality Opportunities Missed in FMEA

To understand this potential opportunity, researchers recently conducted a study where actual patient data was utilized and provided to a mock quality committee. As with any other FMEA, the committee put together their FMEA mapping based on the information provided to them. The research team then compared the information in the committee’s FMEA mapping the actual data identified in the EHR. The results were enlightening. The study showed that 35% of the processes completed were not identified in the committees FMEA mapping. More illuminating was the fact that people from 12 different categories or positions were involved in the discharge process, and not in the original FMEA mapping. Further, what the original FMEA mapping identified as one activity in their map, EHR data showed it was actually a multi-stepped process, involving completely different people.

EHR Strengthens FMEA Mapping

This study clearly shows the potential EHR has to strengthen and extend the reach of current FMEA mapping processes. Significant amounts of data previously undiscovered in EHR could have a dramatic effect on the success of FMEA mapping. Lean Six Sigma professionals should look to EHR as an untapped resource that could expose significant opportunities for success in your quality improvement opportunities. Use the EHR to drill down to any quality improvement opportunities that are truly hidden gems of quality.

 

Want help? You can access a FMEA template for FREE >>>

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Lean Optimization: The 5s Cure for the EHR https://6sigma.com/lean-optimization-5s-cure-ehr/ https://6sigma.com/lean-optimization-5s-cure-ehr/#respond Fri, 28 Feb 2025 06:04:52 +0000 https://opexlearning.com/resources/?p=20801 lean optimization, lean six sigma, quality, improvement, ehr, shmula.com
Can we find a cure for the EHR (electronic health record) through lean optimization and the 5S? The EHR is a digital version of a patient’s paper chart. It contains the medical history, diagnoses, medications, treatment […]

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Can we find a cure for the EHR (electronic health record) through lean optimization and the 5S? The EHR is a digital version of a patient’s paper chart. It contains the medical history, diagnoses, medications, treatment plans, immunization dates, allergies, radiology images, and laboratory test results. The system can be challenging for most users. A survey conduct by the American Medical Association in 2015 indicated that 34% of respondents were either satisfied or very satisfied with their EHR. This is a significant drop from the same survey conducted in 2010 which showed 61% of respondents were satisfied or very satisfied.

Lean Optimization using the 5S

 
Unfortunately, there is a great deal of waste associated with a hospital’s EHR system. Clinicians have several complaints that demand some attention. First, there are just too many buttons cluttering the screen. Secondly, they feel that placing orders and documenting actions takes too long. Lastly, using the InBasket’ with secure communications is difficult and cumbersome.
 
This situation is perfect for the application of the 5S tool. The concept of using SortSetShineStandardize and Sustain is ideal for this problem:
 
  1. Sort – Removing unnecessary items, simplifying to keep value-add items only.
  2. Set – Organize items in the right order to maximize efficiency and minimize wasted time.
  3. Shine – Make the workspace clean and appealing to the eye.
  4. Standardize – Implement best practices for all individuals, maintain standards, and consistency.
  5. Sustain – Create and develop practices that are ongoing and encourage compliance.
 

Changing the Landscape

 
If you consider the millions of mouse clicks and hours spent in front of screens navigating the frustrations of EHR, lean optimization is in demand to bring relief to the users of the EHR system. Frankly, the system must change to ensure it achieves the goals that were established. In a recent survey from the American Journal of Emergency Medicine, a study found that ER physicians spent 44% of their time on duty entering data into the EHR. It goes without saying that most people would prefer to have our ER physicians and other clinicians spending a great deal more of their time with patient care, than struggling with the cumbersome nature of the EHR.

Want to learn more about 5S and visual “factory”?
Download the free training packet below!
download free 5S packet

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]]> https://6sigma.com/lean-optimization-5s-cure-ehr/feed/ 0 Statistical Process Control (SPC): Are You Monitoring the Behavior? https://6sigma.com/statistical-process-control-spc-are-you-monitoring-the-behavior/ https://6sigma.com/statistical-process-control-spc-are-you-monitoring-the-behavior/#respond Fri, 28 Feb 2025 06:04:50 +0000 https://opexlearning.com/resources/?p=20639 statistical process control, lean six sigma, lean six sigma tools, quality, quality tools, shmula.com

Are you monitoring vital behavior using Statistical Process Control (SPC)? Operating a business is is all about knowing what is going on across all of your platforms. For many who hear that […]

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Are you monitoring vital behavior using Statistical Process Control (SPC)? Operating a business is is all about knowing what is going on across all of your platforms. For many who hear that statement, there are objections to the concept. Some feel it is micro-management. Others feel that monitoring that level of detail is just not reasonable, within the numbers of hours available during a work week. Not paying attention to details and trends can lead to some nasty surprises. Quality of product and process can slip, leaving customers disgruntled and unhappy. Using the right tools, with the right practices, businesses can keep a finger on the pulse of their operations.

Statistical Process Control (SPC) Monitors Behavior

The concept of using a control chart to monitoring statistical behaviors was introduced by Walter A. Shewhart while working for Bell Labs in the 1920’s. Shewhart and his staff at Bell Labs understood the importance of reducing variations in the manufacturing process and being able to closely monitor statistical behavior. Today, the process of Statistical Process Control (SPC) control charting allows a business to record data, then monitor the statistical behavior to see if trends or shifts are starting to occur. It creates an understanding of what an unusual event is (spikes of data either high or low) as compared to what typical process performance looks like (common cause or natural variation). This gives the Lean Six Sigma professional the opportunity to analyze and understand unusual behaviors, determine the cause of those outliers, and understand their importance. The statistical behaviors then become more clear and give Lean Six Sigma professionals the ability to more accurately control what is really important to the business.

Controlling Success

Leading up to and during the intense manufacturing period of WWII, control charts were a crucial part of our manufacturing success. Afterwards, the use of the tools slipped in the US, but took on another life in post-war Japan. In recent years, the use of SPC has significantly grown with the growth of quality and continuous improvement initiatives, especially with the broad acceptance of Lean Six Sigma practices. The use of these control methods have been greatly enhanced by digital software statistical and data collection systems.

For the Lean Six Sigma professional, the SPC is a crucial tool in their everyday practice.

If you would like some free SPC Excel templates to download, the following charts are available:

  • Variable Data
    • Individuals and Moving Range (X and MR or I and MR)
    • Average and Range or Average and Standard Deviation (X-bar and R or X-bar and S)
    • Estimated Weighted Moving Average (EWMA)
    • Cumulative Sum (CUSUM)
  • Attribute Data
    • Proportions (P and NP)
    • Defect Count (C and U)

What success have you experienced with SPC charts?

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Box and Whisker Plot: Bring Clarity to Fuzzy Data https://6sigma.com/box-whisker-plot-bring-clarity-fuzzy-data/ https://6sigma.com/box-whisker-plot-bring-clarity-fuzzy-data/#respond Fri, 28 Feb 2025 06:04:50 +0000 https://opexlearning.com/resources/?p=20660 box and whisker plot, box and whisker, lean six sigma, six sigma, lean six sigma tools, shmula.com

A Box and Whisker plot can bring clarity and highlights to your statistical data. We know that statistics assumes data points are clustered around a central value. When using […]

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A Box and Whisker plot can bring clarity and highlights to your statistical data. We know that statistics assumes data points are clustered around a central value. When using a box and whisker plot, the ‘box’ contains and accents the middle half of these data points. It is a great way to graphically display variations in your data set. Because they are so easy to read, you can summarize data from multiple sources and display the results in a single graph. The box and whisker plot also allows for a better comparison of data from different categories.

Growing a Box and Whisker Plot

Understanding and creating a Box and Whisker plot is fairly straightforward. Start the process by organizing your data in numerical order (smallest to largest). Once the data is in proper order, find the median point of your data. The median point should divide the data into two halves. To divide the data into quarters, you then find the medians of these two halves.

Calculating Median Value

It is important to note that if you have an even number of values (so the first median was the average of the two middle values), then you include the middle values in your sub-median computations. If you have an odd number of values (so the first median was an actual data point), then you do not include that value in your sub-median computations. That is, to find the sub-medians, you’re only looking at the values that haven’t yet been used.

Example #1 (odd count of numbers): 2, 3, 5, 7, 9, 10, 15 (median is middle number 7)

Example #2 (even count of numbers): 2, 3, 5, 7, 9, 10 (median is halfway point between 5 and 7, which is 6)

Calculating Quartiles

Now, you have three points: the first middle point (the median), and the middle points of the two halves, or the ‘sub-medians’. These three points divide the entire data set into quarters, called quartiles. Then you name the top point of each quartile a ‘Q’ followed by the number of the quarter. As an example, the top point of the first quarter of the data points is “Q1”, and so forth. Note that Q1 is also the middle number for the first half of the list, Q2 is also the middle number for the whole list, and Q3 is the middle number for the second half of the list. You have created the “box” which contains the middle 50% of the data.

Next, we need to calculate the Interquartile Range (IQR), which defines the “whiskers” around the box. The whiskers extend 50% beyond the width of the box (1.5 x (Q3-Q1)) from the median on each side.

Any points in your data set that fall outside of the whiskers is considered an outlier, and is denoted with an asterick (*).

Let’s take a look at an example

Click image to access free download of this image from BPI

Take Advantage of the Tool

The Box and Whisker plot is an effective and easy to read tool. It can summarize data from multiple sources and display them in a single graph! You can also use the Box and Whisker plot to compare data from different categories and thus, understand their relationships. This allows for a simpler decision making process.

 

 

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Brainstorming: A Powerful Six Sigma Tool https://6sigma.com/brainstorming-a-powerful-six-sigma-tool/ https://6sigma.com/brainstorming-a-powerful-six-sigma-tool/#respond Fri, 28 Feb 2025 06:04:46 +0000 https://opexlearning.com/resources/?p=20407 brainstorm, six sigma tool, ideas, concepts, brainstorming, shmula.com

Brainstorming combines a relaxed, informal approach to problem solving with lateral thinking. It encourages people to come up with thoughts and ideas that can, at first, seem a bit crazy. Some of these ideas can be crafted into […]

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Brainstorming combines a relaxed, informal approach to problem solving with lateral thinking. It encourages people to come up with thoughts and ideas that can, at first, seem a bit crazy. Some of these ideas can be crafted into original, creative solutions to a problem, while others can spark even more ideas. This helps to get people unstuck by “jolting” them out of their normal ways of thinking. This tool can be an extremely powerful and effective tool in the Six Sigma toolbox. It allows things to be stirred up and the layers of complex issues peeled back to expose the truths!

4 Keys to Effective Brainstorming

The ideal situation when things just click is exactly the place brainstorming gets you to. It allows ideas and situations to come together and create the perfect storm for creativity. Some industries are much better at the practice than others. Businesses that are more of a creative environment tend to understand and use the concept more comfortably. Businesses who are more technical ‘rules followers’ are less likely to be comfortable with a brainstorm session. The fact is, using a brainstorm session can be equally successful in any business environment, regardless of the creative structure. To take advantage of this powerful tool, you simply need to set some basic ground rules. The importance of these rules are more focused on respect for others vs. following secured rules. Here are the four basic rules to establish a proper brainstorm:

  1. No Such Thing As A Dumb Idea – All cards are on the table. The group must be able to feel comfortable that their ideas are plausible. Open yourself up to the possibilities.
  2. No Criticism – It’s not a debate about the technical merits. It is about what is possible!
  3. Build on Other’s Ideas – When an idea is put on the table, open your mind and imagine how to build on that. Avoid the technical and see how you can layer a path for improvement.
  4. Avoid Quality vs. Quantity – This presents a challenge for a more structured business. The tool isn’t about the technical aspects, but about the idea. Go for the quantity every time to be successful. The more ideas that are on the table, the more you will be open to possibilities.

The brainstorm tool keeps the wheels of collaboration turning. It can unfreeze the curiosity of many and encourage their ideas to flow. Keep the rules of the tool to basic respect and you will find a goldmine that will flow into your business! There is no such thing as a bad idea.

 

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FMEA Tool: Predicting the Possibilities https://6sigma.com/fmea-tool-predicting-the-possibilities/ https://6sigma.com/fmea-tool-predicting-the-possibilities/#comments Fri, 28 Feb 2025 06:04:45 +0000 https://opexlearning.com/resources/?p=20348 flea tool, six sigma, six sigma tools, lean six sigma, shmula.com

Can You Predict the Possibilities?

Understanding the power and potential of the FMEA tool is crucial. Wouldn’t it be great to be able to predict the future? If you follow a path, under a […]

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Can You Predict the Possibilities?

Understanding the power and potential of the FMEA tool is crucial. Wouldn’t it be great to be able to predict the future? If you follow a path, under a given set of circumstances,you should be able to predict the outcomes of that adventure. Almost feels like watching the weather segment of the 6 o’clock news. You see a trained professional telling you what the temperatures will be, the cloud cover and whether or not you need an umbrella. All of that prediction is given to you over a 5 or 7 day period. Business professionals tend to predict outcomes in the same manner. They look at superficial data and then, based on their gut instinct and a touch of optimism, they predict the outcomes of their process. In both scenarios, we usually end up getting caught in the rain — when everything said, we would be basking in the sunshine of success.

Seeing Success With The FMEA Tool

The FMEA Tool (Failure, Modes, Effects, Analysis) is a powerful tool available to a Lean Six Sigma practitioner. The tool is extensively used where a safety critical environment exists, such as the aerospace or automotive industry. The tool allows a team the ability to design quality and safety into processes or products on the front end of the environment, eliminating potential problems before they occur. There are three key questions the FMEA tool is built around:

  1. Severity: What are the consequences of failure?
  2. Occurrence: What is the likelihood of failure?
  3. Detection: How likely is it that the failure can be detected before reaching the customer or causing a safety issue?

Answering these questions and the using the tool to project the possibilities will empower a business to make better decisions about a process or a product.

This is done through a ranking system, where each question is ranked from 1-10, with 1 being the least risky, and 10 being the most risky.

  • Severity: 1 = no impact to customer, 10 = hazardous effect on customer
  • Occurrence: 1 = never happens, 10 = happens over 50% of the time
  • Detection: 1 = Failure catch every time, 10 = failure never caught

Each ranking is multiplied across the 3 questions, to come up with a Risk Priority Number (RPN). For example, a failure might get a Severity ranking of 5, an Occurrence ranking of 3 and a Detection ranking of 6, for a total RPN of 90 (5 x 3 x 6). You can learn more about FMEA, and watch a summary video in our Six Sigma DMAIC Training Curriculum.

Enjoying the Benefits

Wouldn’t it be amazing to have a process or product that you have complete confidence in every aspect of, inception to final delivery? If you look at aerospace, they cannot afford to have errors or issues. One problem, no matter how small, can create catastrophic results for the customer or the employees. The product must be perfect in every way, during every step of the process to the final product. Your business can expect that same level of predictive accuracy when you apply the FMEA appropriately.

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Lean Six Sigma Tools: What’s in Your Toolkit? https://6sigma.com/lean-six-sigma-tools-whats-in-your-toolkit/ https://6sigma.com/lean-six-sigma-tools-whats-in-your-toolkit/#respond Fri, 28 Feb 2025 06:04:42 +0000 https://opexlearning.com/resources/?p=20136 lean six sigma tools, lean six sigma, productivity, professional, shmula.com

Using a Wrench to Drive a Nail

When you think about all of the Lean Six Sigma tools that are at your disposal, the question comes to mind …what’s in your toolkit? Getting a […]

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Using a Wrench to Drive a Nail

When you think about all of the Lean Six Sigma tools that are at your disposal, the question comes to mind …what’s in your toolkit? Getting a job done, whether simple or complex requires a certain know how and understanding of the mechanics required to accomplish the task. Unfortunately, many will just jump in to resolve a problem and grab the first tool at hand to get the job done. Each of us have seen it done many times before and might even be guilty of it. Using a wrench to drive a nail, or a hammer to fix just about any problem you might run up against – it’s a common thing. Push it, pull it or hit it hard enough, it just might fix the problem. These are just some examples of the wrong tool, being used for the right job. Business solutions, inspired by off-the-cuff thinking, using improvised tools that require a great deal of effort are applied in an overly simplistic manner to achieve results. These ‘quick fixes’ get some very short term results, but typically lead to long term problems which are significantly amplified by shoddy practices.

Professionals Use the Right Tools

The good news is Lean Six Sigma practitioners have a full array of tools available to them. These tools at your disposal are the ‘right tools’ for the ‘right job’ and produce results that are desired, in the most efficient manner possible. When Lean Six Sigma tools are applied by a professional, with the skills to apply them to the right situation, they achieve effective and timely results. Here is a list of the most important tools available to you:

  1. The 5 Why’s – Moves you past the symptoms and gets to the root of the problem.
  2. Fishbone Diagram – A tool that allows a ‘structured’ brainstorming process.
  3. Histogram – Delivers a visual representation of collected data.
  4. Regression Analysis – Allows determination that an input process is related to an output process.
  5. Run Chart/Time Series – This tools shows trends and shifts.

Check out our list of FREE Lean Six Sigma templates >>>

Lean Six Sigma Tools Achieve Efficiency

Lean Six Sigma professionals have a vast array of tools at their disposal. The key is that you become proficient and comfortable working with those tools. You must develop an understanding of how they are used and what results you can expect when they are properly employed. Then, it takes practice! Use the tools and knowledge that you have in both simulated and real world situations. A professional carpenter can drive nails with amazing speed and consistency, as compared to the weekend warrior doing a self-help project at home. You have to be a skilled professional and be able to drive that nail home!

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Minitab: Developing Your Statistical Skills https://6sigma.com/minitab-developing-your-statistical-skills/ https://6sigma.com/minitab-developing-your-statistical-skills/#respond Fri, 28 Feb 2025 06:04:41 +0000 https://opexlearning.com/resources/?p=20103 minitab, statistics, statistical analysis, business, leadership, six sigma, shmula.com

Reasoning and Justification

What is the importance of Minitab training to a Six Sigma professional? The practice of Six Sigma requires us to rely on statistics and hard data. This allows the professional to provide continuous process […]

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Reasoning and Justification

What is the importance of Minitab training to a Six Sigma professional? The practice of Six Sigma requires us to rely on statistics and hard data. This allows the professional to provide continuous process improvement. Being able to evaluate and determine variances is a base of knowledge that just cannot be retained without reference. A Six Sigma practitioner depends on specialized tools to achieve success, such as Minitab. Being able to successful navigate and implement this powerful tool with confidence requires training and practice. The software platform enables a Six Sigma practitioner the ability to enter data, manipulate that data, understand trends, then extrapolate solutions to the challenges of the project. Without a clear understanding and confidence in operation of the Minitab software, Six Sigma professionals would struggle to provide accurate solutions to very complex issues, in a timely manner.

Minitab is Tailored For Quality

Achieving success in the Six Sigma profession demands that you have available and fully understand the use of the proper tools of the job. Every industry has their specific software that is unique to the application of their trade. Minitab is the leading software for Six Sigma professionals. Like any other process, it is crucial for a professional to understand the basic mechanics of the process, then graduate to an automated software platform. This ensures the professional understands the hows and whys of the process, before using the software. Learning the statistical applications of Six Sigma is crucial to anyone in the professional, it is simply a stepping stone to the next level of proficiency. Once you have mastered manual manipulation of the statistics, then moving into the Minitab software is the beginning of another learning process. Every professional software has a learning curve of manipulation and data entry. Minitab requires a certain level of education and understanding to achieve the desired results. Any practitioner of Six Sigma should complete a comprehensive and detailed training course on the Minitab software.

Achieving Success With Minitab

Your continued success in the Six Sigma profession depends on continuous and consistent training and education. An important part of this ongoing training effort should include a formal and comprehensive training on the Minitab software platform. When you are proficient and comfortable with the platform, you will be able to provide a better quality work product and achieve the results you are seeking in any project. It is a crucial skill to master.

 

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