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Chapter 4: Lean Concepts - Coggle Diagram
Chapter 4: Lean Concepts
The Seven Muda
Muda=waste, being useless unnecessary, or idle
- Overproduction: a product, part, or service that was produced to fast, at the wrong time, or in too much quantity, key to eliminating over production is planning
- Correction: muda of rework, eliminates defects of an end product is done by corrections aka in-process quality checks, downside is it increases time and uses additional labor/material
- Inventory: materials or inputs stack up before a step in the process aka bottleneck. Items purchased before they are needed
- Motion: how employees move during a process
- Conveyance: involves the movement of outputs, products, or resources. Referred to as Muda of transportation. Can relate to the physical movement of items or digital of data or workflow
- Over-processing: when an employee or process inputs more resources into a product or service than is valued by customer, can occur because ignorance, excitement, lack of training
- Waiting: any idle time during a process, creates waste
Other forms of waste
Talent, ideas, capital/cash
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5S
Sort(seiri): materials in workplace are reviewed removing unnecessary items and keeping necessary items
Straighten(section): creating easy to use location for everything in workplace. Item, tools, materials are given a home
Shine(seiso): keeping workplace clean, japanese word=sweep, scrub, sanitize
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