What tools and methods for a continuous improvement approach?

What is a continuous improvement approach?

Continuous improvement is an iterative and ongoing process that aims to optimize an organization’s processes, products, and practices by eliminating dysfunctions and strengthening value-generating elements.

Integrating this approach into the corporate culture can gradually boost growth and performance at all levels, reduce costs and improve efficiency, productivity and profitability. Continuous improvement is one of the main principles of the ISO 9001 standard and is at the heart of any operational excellence strategy.

To formalize this approach on a daily basis, the continuous improvement sheet is a reference tool. It allows you to structure each action: identified problem, root causes, corrective actions and follow-up of results.

Continuous improvement tools and methods

The Deming Wheel (PDCA): the universal base

The PDCA cycle is a four-step iterative management method (Plan, Do, Check, Act) that allows you to continuously improve a process by testing, measuring, and adjusting each cycle.

It is structured as follows:

• Plan : Analyze the situation and develop an action plan with key indicators
• Do : implement the plan with the stakeholders concerned
• Check : evaluate results with KPIs and identify gaps
• Act : draw conclusions from the cycle and deploy a new cycle of improvement

Its strength: repetition. Each cycle allows you to progress one more notch, without ever taking the result for granted.

Lean Management: Eliminating Waste

Lean Management is a process optimization methodology that aims to eliminate any non-value-added activity (waste, waiting time, overproduction) to maximize efficiency and customer satisfaction.

Created by Toyota, this method aims to improve performance and profitability by eliminating sources of waste: superfluous tasks, non-value-creating elements, overproduction, latency, untapped skills, poor inventory management. Many tools are derived from this: the Just-in-Time method, the Kaizen method or the 5S method.

Recent results confirm its effectiveness. According to a Kaizen Institute case study, applying Lean in a food and beverage plant generated an increase in OEE (Overall Equipment Effectiveness) of 20 to 25 points, a 68% reduction in unplanned breakdowns, and total savings of $270,000 through the elimination of overtime and waste.

The Kaizen approach: small steps in everyday life

Kaizen is a Japanese philosophy (“change for the better”) that advocates continuous improvement through small, regular and progressive changes, involving each employee on a daily basis.

This method requires the commitment and total buy-in of all employees. Kaizen can be based on the Deming wheel, 5S, TQM (Total Quality Management) and lean management.

In the furniture industry, a Kaizen program has achieved +28% productivity, -32% glue costs, -30% electricity costs, while reducing workplace accidents by 50% and improving delivery rates from 86% to 98%.

The Six Sigma Method (DMAIC): Statistical Rigour

Six Sigma is a process improvement method that uses statistical tools to reduce variability and defects, aiming for a compliance rate of 99.9997% (3.4 defects per million).

It is based on customer feedback and measurable indicators, via the DMAIC method:

• Define : Define the Purpose and Scope
• Measure : Evaluate current performance and customer expectations
• Analysis : Identify the root causes of problems
• Improve : implementing corrective solutions
• Control : ensuring that gains are maintained over time

In the case documented by Kaizen Institute, the combined application of Lean and Six Sigma reduced the defect rate by 84% in PPM (Parts Per Million) at major customers.

Comparison of methods

Other useful tools

• McKinsey’s 7S : analysis of internal performance (strategy, structure, systems, style, skills, staff, shared values)
• Gemba approach : observing processes directly in the field
• The 5 Whys : Getting to the root causes of a problem
• Pareto’s Law : 80% of results come from 20% of actions
• The 3M’s : identifying waste (Muda), variability (Mura) and excesses (Muri)

To learn more about quality management and ISO 9001, check out our dedicated articles.

How to implement a continuous improvement approach

1. Diagnose : identify processes to be improved through an internal audit and performance indicators
2. Prioritize: focus efforts on high-impact actions (Pareto’s law)
3. Involve : involve all employees in the process — continuous improvement is not a management project, it is a culture
4. Equipping : choosing the methods adapted to your context (PDCA to get started, Lean or Six Sigma to deepen) and formalize with a continuous improvement sheet
5. Measure : Track results via KPIs and dashboards
6. Iterate : each improvement cycle leads to another

Also check out our feedback on warehouse management via WMS, operational agility and improving industrial performance.

The interim manager, accelerator of your approach

Deploying a continuous improvement approach requires time, specific skills and an objective eye. A specialized interim manager brings these three elements: proven methods, sector expertise and the ability to get teams on board quickly.

Wayden has supported companies in this process, in particular through industrial management missions where the interim manager has structured and piloted the deployment of continuous improvement in a sustainable way. To learn more, see Guide W — Moving Milestones with Interim Management.

Do you want to improve your operational performance in the long term?

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Frequently asked questions

What is the difference between continuous improvement and operational excellence?

Continuous improvement is a component of operational excellence. It refers to the daily and iterative practice of process optimization, while operational excellence also encompasses strategy, tools, management and corporate culture.

What is the best tool to start a continuous improvement process?

The PDCA cycle (Deming wheel) is the recommended starting point: simple, universal and applicable to any type of process. It can then be enriched by more specific methods such as Lean or Six Sigma.

Is continuous improvement just for industry?

No. While methods such as Lean and 5S were created for industry, they apply to all sectors: services, finance, health, retail. The principle remains the same: identify waste and optimize processes.

How can employees be involved in the process?

By involving them from the diagnosis, by promoting their suggestions for improvement and by making the results visible. The Kaizen method is particularly suitable because it is based on the commitment of each employee on a daily basis.