What is Lean Management?
Lean Management is a management philosophy that focuses on eliminating waste (Muda) and creating customer value. Lean is not just a set of tools, but a way of thinking that works in every industry - from manufacturing to services, construction and administration. The foundations of Lean are processes, people, organisational culture and continuous improvement.
What does Muda mean and what are its types?
Muda stands for waste - activities that do not add value from a customer perspective. Lean distinguishes between 7 main wastes:
- Overproduction
- Excessive stocks
- Unnecessary transportation
- Unnecessary movement
- Waiting
- Defects
- Over-processing
Modern Lean methods also use the 8th loss - the untapped potential of people, encompassing lack of commitment, overlooking of employee ideas or misuse of competencies.
Example: production of 1,000 pieces for stock when the customer only ordered 200.
What is Kaizen about?
Kaizen is a philosophy of continuous improvement - small, everyday improvements implemented by all employees. This the foundation of a Lean culture, where anyone can report and implement improvements.
Example: The operator mounts the toolholder next to the machine and saves a few minutes of work a day.
What is the difference between Kaikaku and Kaizen?
- Kaizen- small, systematic changes in daily work.
- Kaikaku- a radical, ground-breaking change to the whole process.
Example:
Kaizen - improving the ergonomics of the workplace.
Kaikaku - complete reorganisation of the production hall layout.
What does the Just in Time (JIT) system offer?
Just in Time means producing and delivering exactly what is needed, when it is needed, in the right quantity. It minimises stocks, reduces costs and stabilises flow.
Example: parts delivered hourly instead of in large weekly batches.
Why Jidoka is the key to quality?
Jidoka This is known as process autonomisation. Machines and workers stop production when they detect an error, instead of producing defective products.
Jidoka is one of the two pillars of the Toyota Production System. It stands for:
- ability to detect irregularities,
- automatic process stop,
- preventing the production of defective components,
- separation of human and machine work.
Example: a sensor on the production line automatically stops the process if the component is misaligned.
Summary - Foundations of Lean Management
- Lean starts with recognising losses (Muda).
- It thrives on culture Kaizeni Kaikaku.
- It gains efficiency by Just in Timei Jidoka.
These are the foundations that lay the groundwork for more advanced Lean tools and effective process management.
