1. Transportation Waste Simulation
Objective: Optimize the movement of documents between departments
2. Inventory Waste Simulation
Objective: Maintain optimal inventory levels
Current Stock
Daily Demand
Average daily usage: 10 units per item
Adjust Inventory
3. Motion Waste Simulation
Objective: Optimize workspace layout to minimize unnecessary movement
Movement Log
4. Waiting Waste Simulation
Objective: Identify and eliminate waiting time in processes
Process Steps
Process Statistics
5. Overproduction Waste Simulation
Objective: Match production with actual demand
Customer Orders
- Product A: 10 units
- Product B: 15 units
- Product C: 5 units
Production Plan
Storage Costs
6. Over-processing Waste Simulation
Objective: Identify and eliminate unnecessary steps
Current Process Steps
Process Analysis
7. Defects Waste Simulation
Objective: Identify and prevent quality issues
Quality Check Station
Quality Metrics
8. Skills Waste Simulation
Objective: Identify and utilize employee skills effectively
Employee Skills
Current Tasks
Skills Analysis
The 8 Wastes of Lean Manufacturing
Click on each waste type to explore detailed examples and solutions
Defects
Products or services that don't meet specifications
Overproduction
Producing more than needed or before it's needed
Waiting
Time spent waiting for the next step in the process
Non_utilized_Talent
Underutilizing people's skills and creativity
Transportation
Unnecessary movement of materials or information
Inventory
Excess storage of parts, materials, or information
Motion
Unnecessary movement of people or equipment
Extra_Processing
Doing more work than required by the customer
Common Examples:
Solutions:
Key Metrics
Learning Progress
8 Wastes of Lean Manufacturing
Defects
Products or services that don't meet specifications or customer expectations, requiring rework or scrapping.
- Manufacturing errors requiring rework
- Incorrect documentation or paperwork
- Software bugs requiring patches
- Assembly mistakes
- Quality control rejections
- Customer returns due to quality issues
- Data entry errors
- Packaging defects
Overproduction
Producing more than needed or before it is needed.
- Producing beyond customer orders
- Making products before demand exists
- Excessive batch sizes
- Creating reports no one reads
- Printing documents unnecessarily
- Making "just in case" inventory
- Over-staffing shifts
- Preparing materials too early
Waiting
Time delays between production steps or during service delivery.
- Machine breakdowns
- System downtimes
- Material shortages
- Processing bottlenecks
- Delayed approvals
- Waiting for information
- Equipment setup times
- Queue times between operations
Non-Utilized Talent
Underutilizing people's capabilities or not engaging their creativity and intelligence.
- Ignoring employee suggestions
- Poor task delegation
- Limited training opportunities
- Mismatched skill assignments
- Lack of cross-training
- Insufficient empowerment
- Overlooked experience
- Untapped creativity
Transportation
Unnecessary movement of materials, products, or information.
- Multiple storage locations
- Poor facility layout
- Inefficient routing
- Unnecessary material handling
- Long distances between processes
- Multiple handling points
- Temporary storage locations
- Excessive file transfers
Inventory
Excess materials, work-in-progress, or finished products not being processed.
- Excess raw materials
- Obsolete inventory
- Buffer stocks
- Unprocessed paperwork
- Overflowing storage areas
- Work in progress (WIP)
- Safety stock excesses
- Bulk purchases
Motion
Unnecessary movement of people or equipment within the process.
- Poor ergonomic design
- Excessive reaching
- Unnecessary walking
- Tool searching
- Disorganized workspaces
- Multiple data entry
- Inefficient layouts
- Extra physical movements
Extra Processing
Performing unnecessary steps or using more resources than required.
- Redundant approvals
- Excessive quality checks
- Over-engineering
- Multiple inspections
- Unnecessary features
- Duplicate data entry
- Excessive documentation
- Overprocessed materials