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Questions and Answers
What concept does the Theory of Swift, Even Flow use as a measure of the speed of flow in manufacturing processes?
What concept does the Theory of Swift, Even Flow use as a measure of the speed of flow in manufacturing processes?
Throughput time
How does the theory suggest reducing the time spent on flow in manufacturing processes?
How does the theory suggest reducing the time spent on flow in manufacturing processes?
Reduce the clock time spent in throughput time
What does narrowing the variability associated with demand or process steps help achieve in manufacturing processes?
What does narrowing the variability associated with demand or process steps help achieve in manufacturing processes?
Smooth flow of materials
What type of production plans are more compatible with productivity according to the Theory of Swift, Even Flow?
What type of production plans are more compatible with productivity according to the Theory of Swift, Even Flow?
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How does processing like things together contribute to productivity in manufacturing?
How does processing like things together contribute to productivity in manufacturing?
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What is the purpose of scientific methods in manufacturing processes?
What is the purpose of scientific methods in manufacturing processes?
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What is the Theory of Swift, Even Flow based on?
What is the Theory of Swift, Even Flow based on?
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How does the Theory of Swift, Even Flow suggest productivity can be improved?
How does the Theory of Swift, Even Flow suggest productivity can be improved?
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What are the two categories into which all work can be divided according to the theory?
What are the two categories into which all work can be divided according to the theory?
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How is value-added work defined in the context of the Theory of Swift, Even Flow?
How is value-added work defined in the context of the Theory of Swift, Even Flow?
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What are some examples of non-value-added work according to the theory?
What are some examples of non-value-added work according to the theory?
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What are the seven classic wastes identified by Shigeo Shingo that fall under non-value-added work?
What are the seven classic wastes identified by Shigeo Shingo that fall under non-value-added work?
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Study Notes
The Theory of Swift, Even Flow
- The theory states that the more swift and even the flow of materials through a process, the more productive that process is.
- Productivity rises with the speed of material flow and falls with increases in variability associated with the flow.
Understanding the Theory
- Work can be divided into value-added and non-value-added work.
- Value-added work transforms materials into good products, while non-value-added work includes tasks like moving, cataloging, inspecting, and reworking materials.
- Non-value-added work is considered waste, including the seven wastes: overproduction, waiting, transportation, unnecessary processing, stocks, motion, and defects.
Key Concepts
- Throughput time measures the speed of material flow from the starting point to completion and supply to customers or warehouses.
- Reducing throughput time increases productivity.
- Throughput time helps identify where flow has become retarded or blocked.
Variability and Bottlenecks
- Variability is measured by variance or standard deviation of timing or quantities demanded, or time spent in process steps.
- Narrowing variability by reducing demands and making production plans level and regular increases productivity.
- Processing like things together, without slowing down the process, also increases productivity.
Scientific Methods
- Scientific methods remove non-value-added motions and steps, and enable value-added steps to be done more quickly and with less exertion.
- Scientific methods are most effective when applied to value-added work, and have varying success when applied to non-value-added work.
- The theory is consistent with deductive laws of variability and bottlenecks.
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Description
Explore the concept that the productivity of a process increases when materials flow swiftly and evenly through it. Learn how productivity is influenced by the speed and variability of material flow in various aspects such as labor, machines, and materials.
