Understanding the Accountability of Continuous Improvement

In Lean, continuous improvement is like a religion. Although it seems like a simple thing to achieve, leaders and teams who are not familiar with process improvement techniques have a hard time sustaining it.

To implement this mindset, you need to have a clear understanding of what exactly is continuous improvement, what principles you need to follow and check some of the best practices.

The Continuous Improvement Model

The term continuous improvement can be very abstract if not placed in a specific context. Explained shortly, it is a never-ending strive for perfection in everything you do. In Lean management, continuous improvement is also known as Kaizen.

Kaizen originated in Japan shortly after the end of the Second World War. It gained massive popularity in manufacturing and became one of the foundations of Toyota's rise from a small carmaker to the largest automobile manufacturer on the planet.

In the context of the Lean methodology, continuous improvement seeks to improve every process in your company by focusing on enhancing the activities that generate the most value for your customer while removing as many waste activities as possible.

muda mura muri

There are three types of waste in Lean:

  • Muda – The seven wastes
  • Mura – The waste of unevenness
  • Muri – The waste of overburden

Muda consists of 7 major process wastes: transport, inventory, motion, waiting, overproduction, over-processing, defects.

Removing all of them completely is nearly impossible but focusing on minimizing their negative effects on your work is crucial for successfully implementing continuous improvement.

Mura is caused by unevenness or inconsistency in your process. It is responsible for many of the 7 wastes of Muda. Mura stops your tasks from flowing smoothly across your work process and therefore gets in your way of reaching continuous flow.

Muri is a major problem for companies that apply push systems. When you assign too much work to your team, you place unnecessary stress on both your team and process.

Muri is usually a result of Mura, and if you want continuous improvement to become part of your culture, you need to focus on getting rid of those wastes.

Adopting Continuous Improvement – Tools and Techniques

Understanding the theory behind it is the first step in applying continuous improvement to your management culture. To set yourself up for continuous improvement, you need to create a suitable environment within your company.

In Lean management, there are three major approaches for achieving continuous improvement:

Plan-Do-Check-Act (PDCA)

Plan-Do-Check-Act

The model Plan-Do-Check-Act is the most popular approach for achieving continuous improvement.

Also known as the Deming circle (named after its founder, the American engineer William Edwards Deming), it is a never-ending cycle that aims to help you improve further based on achieved results.

It was first developed for quality control but, in time, became an instrument for achieving continuous improvement.

In the planning phase, you need to establish the objectives and processes necessary to deliver results per the expected output (the target or goals).

Setting output expectations is a key to achieving continuous improvement because the accuracy of the goals and their completeness is a major part of the process of improving.

It is recommended to start on a small scale so you can test the effects of the approach.

The second phase is "Do". It is straightforward as you need to execute what you've laid down during the process's planning step.

After you've completed your objectives, you need to check what you've achieved and compare it to what you've expected. Gather as much data as possible and consider what you can improve in your process to achieve greater results next time.

If the analysis shows that you've improved compared to your previous project, the standard is updated, and you need to aim for an even better performance next time.

In case you've failed to improve or have even achieved worse results compared to the past, the standard stays as it was before you started your last project.

Root Cause Analysis

Root Cause Analysis (RCA) is a technique practiced in Lean management that allows you to achieve Kaizen by showing you the root causes of your process's problems.

It is an iterative practice that drills down into a problem by analyzing what caused it until you reach the root of the negative effect. It can be considered root only if the final negative effect is prevented for good after the cause is removed.

To apply RCA for continuous improvement, you need to perform a thorough analysis of the problem.

Root-cause-analysis

For example, let's say that you are leading a software development team. When you released the latest update of your product, your support team was bombarded with bug reports from customers.

You begin to look for the root cause starting from the top of the problem.

You investigate how your QA team allowed for this to happen and discover that they failed to run all the necessary tests on the software.

Afterward, you look into what caused that and learn that the development team provided them with the features that were to be released at the last possible minute.

Looking into the cause of that, you find out that the developers finished the majority of features right before they submitted them for quality assurance.

Digging into the cause of that, you find out that your development team took more time than you have planned to develop the features in the first place.

Investigating the reason behind that, you discover that your team was inefficient because each developer simultaneously worked on a few features. Therefore, instead of giving features one by one to QA, they submitted a batch that was too large to process on short notice.

Analyzing why this happened, you realize that you haven't placed any regulations on the amount of work that can be in progress simultaneously and did not ensure the evenness of your process.

Reaching this point, you conclude that the root cause of the bug problem is Mura (the waste of unevenness).

To achieve continuous improvement, we suggest you analyze each problem's root cause and experiment with solutions.

Often, problems may turn out to be far more complex than you think, and the RCA would require a few iterations before preventing the negative effect from ever happening again.

If you are not sure how to perform a root cause analysis, we suggest looking into the 5 Whys for determining root causes.

Applying Lean Kanban

To continuously improve your process, you need to visualize what needs to be improved clearly.

If you lack visibility, you'll be able to improve from time to time but won't be able to spot symptoms of a problem before it is too late.

When Toyota was looking for a way to do that, they developed Kanban as a system for improving the workflow efficiency of the production process.

Eventually, Kanban was adapted for knowledge work and managed to help thousands of teams to achieve continuous improvement. The method relies on six core practices for minimizing the wastes in your process:

  • Visualize your workflow
  • Eliminate interruptions
  • Manage flow
  • Make process policies explicit
  • Create feedback loops
  • Improve collaboratively

Kanban board

To visualize your workflow, the method relies on whiteboards for mapping every step of your process. The board is divided by vertical lines forming columns for the different stages.

A basic Kanban board consists of three columns: Requested, In Progress, Done.

Each task that your team is working on is hosted on a Kanban card (originally in the form of a post-it note) and needs to pass through all the stages of your workflow in order to be considered complete.

Kanban boards allow you to monitor your process's evenness and can be a serious weapon for minimizing Mura.

Besides, they show you the amount of work that every person on your team has and can help you prevent overburden (Muri) by allowing you to delegate tasks according to your team's capacity.

Finally, you can monitor the pace at which work is progressing across your workflow and achieve continuous improvement of your workflow efficiency.

For the sake of eliminating interruptions, Kanban relies on limiting the work that can be in progress simultaneously. The goal is to eliminate multitasking, which is nothing more than a constant context switch between assignments and only harms productivity.

With the help of Kanban, you can manage the flow of work in your process. To ensure an even process, you need to be aware of where work gets stuck and take action to alleviate the bottlenecks in your process. This way, you can experiment with the different steps of your workflow and keep improving continuously.

In Lean management, continuous improvement is a group activity. Therefore you need to make sure that your team understands the common goal and why their part of the process is important.

By making process policies explicit, you'll encourage your team members to take more responsibility and take ownership of their process.

For positive change to happen, there needs to be a constant flow of knowledge between you and your team.

The Kanban board itself is a great feedback loop generator because it makes it visible who is doing what at any time.

In combination with the widely adopted practice of holding daily stand up meetings between the team, you can continuously improve information sharing between individuals.

Other techniques that are part of the continuous improvement arsenal are the Gemba walk and the A3 report. The A3 report is a structured approach that helps you deal with problem-solving issues, while the Gemba walk encourages you to go and see where the real work happens. Both are extremely useful, and they can help you discover problematic parts in your workflow.

Bottom Line

Kaizen is a never-ending quest for perfection, but you'll start feeling the benefits of continuous improvement on your business when your whole team takes it by heart.

Kanban and the other continuous improvement tools can help you with that because your team will obtain lots of knowledge about process improvement and workflow management. As a result, each individual will understand how your process works and how it can be improved.

In Summary

There are many ways to achieve continuous improvement. All of them have one thing in common - analyzing what can be done better compared to the past. You can sustain continuous improvement by:

  • Minimizing the wastes in your process
  • Creating a suitable environment for your team to improve
  • Implementing the PDCA cycle
  • Always looking for the root cause of existing and potential problems
  • Apply the Kanban method for workflow management

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Source: https://kanbanize.com/lean-management/improvement/what-is-continuous-improvement

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