Which Of The Following Is Related To Lean Production

Muda, mura, muri in Toyota Production System

The lean production system emphasises the 3 main elements that need to be considered and eliminated in the process of production

1. Muda – waste elimination
2. Mura – unevenness of the production process
3. Muri – overburden

These elements are discussed below in detail.

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Muda – Waste elimination

‘Muda’ refers to all kinds of waste. Lean production methodology states that there are 7 losses in production that can be eliminated to add value to products:

• Defects: Defects can result in heavy losses. It is very important to try and eliminate any defects as early as possible. Lean production suggests that defects can be prevented by checking the production in the first place which can stop them from happening or removed from the final steps of production.
• Waiting: Waiting is another kind of waste that lean production methodology suggests eliminating. Waiting refers to the time spent waiting to start the next process or interruptions in the overall production process. Lean production suggests that constant and continuous production should be maintained to avoid resource waste.
• Overproduction: Producing little more than the demand is all right but overproduction way beyond demand can be risky and result in resource wastage. Hence, lean production suggests eliminating overproduction waste.
• Inventory: Finished goods that have not been sold or the production of unfinished goods that have not been moved to the next production stage can create waste.
• Transport: The cost involved in transportation can lead to waste. Movement of material or finished goods should be planned so as to avoid waste of resources.
• Processing: Unnecessary and unrequested over-processing of products can lead to waste.
• Motion: The movement of elements within the organization must be minimized and the path should be planned out in advance to avoid time waste.

Mura

‘Mura’ means unevenness in the production process. It is any kind of non-uniformity in manufacturing that can lead to Muda, which refers to general product waste. Lean production suggests that all processes should be uniform, which can help in ongoing levelled production, avoiding the accumulation of waste or overproduction.

Mura can be avoided with the Just-in-Time (JIT) production system which suggests producing only when there is demand for the product, in the right quantity and the right place.

Advantages of lean production

There are many advantages to implementing a lean production system. Here are some of the most significant benefits:

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  Reduced Waste: One of the primary advantages of lean production is that it helps to identify and eliminate waste in all aspects of the production process. This includes reducing excess inventory, minimizing defects and rework, and streamlining production flow.

• Increased Productivity: Lean production methods are designed to improve productivity by eliminating bottlenecks. This helps to ensure that products or services are delivered to customers as quickly as possible.

• Improved Quality: Lean production techniques prioritize quality by identifying and addressing the root causes of defects and errors. This results in higher quality products or services.

• Enhanced Flexibility: Lean production methods allow companies to be more flexible and responsive to changes in customer demand. By using just-in-time production, companies can quickly adapt to changes in the marketplace, reducing the risk of overproduction or excess inventory.

• Improved Customer Value: Lean production ultimately results in a better overall customer experience, by delivering high-quality products or services more efficiently and at a lower cost.

Disadvantages of lean production

While there are many advantages to implementing a lean production system, there are also some potential disadvantages, such as:

1. High initial Investment: Implementing a lean production system often requires a significant investment in equipment, training, and other resources. This can be a barrier to entry for smaller companies with limited resources.
2. Complexity: The lean production system is a complex methodology that requires careful planning and execution. It can be difficult to implement and manage, especially in larger organizations with multiple departments or facilities.
3. Dependence on Suppliers: Lean production often requires a close partnership with suppliers, who must be able to deliver high-quality materials and components in a timely manner. If a supplier fails to deliver on time or delivers defective materials, it can cause significant disruptions to the production process.
4. Employee Resistance: Enforcing a lean production system can be a significant change for employees, who may be resistant to the new approach or require extensive training to fully understand the new processes and workflows.
5. Narrow focus on cost reduction: Lean production is often associated with cost reduction and efficiency improvements, which can sometimes lead to a narrow focus on these goals at the expense of other important aspects of the business, such as innovation or employee satisfaction.

Lean production advantages and disadvantages

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The advantages and disadvantages of lean production can be summarized as follows:

AdvantagesDisadvantages

• Increased productivity
• Improved quality
• Enhanced flexibility
• Improved customer value

• High initial investment
• Complexity
• Dependence on suppliers
• Employee resistance
• Narrow focus on cost reduction

Lean production examples

There are many companies across the world, besides Toyota, that implemented a lean production system. Let’s take a look at three famous examples of lean production in action:

• Boeing: The aerospace manufacturer uses lean production to streamline its production processes and reduce waste. For example, by using just-in-time inventory management and implementing error-proofing techniques, Boeing has been able to improve efficiency and reduce costs in its production of commercial aircraft.

• Amazon: The e-commerce giant uses lean production techniques to optimize its supply chain and distribution processes. By using real-time data analysis and just-in-time delivery, Amazon is able to quickly respond to changes in demand and reduce excess inventory.

• Intel: The computer chip manufacturer uses lean production to improve the efficiency and quality of its manufacturing processes. By implementing error-proofing techniques and reducing defects, Intel has been able to improve the reliability and performance of its products, while also reducing costs.

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