It was originated from the Toyota Production System(TPS) and built on the concept of continuous improvement.
Lean System
Principles of Lean System
Value Identification
Value Stream Mapping
Flow
Pull Production (JIT)
Continuous Improvement (Kaizen)
Respect for People
Focus on what the customer values
Value Identification
Eliminate anything that doesn’t add value.
Value Stream Mapping
Create smooth, continuous processes
Flow
Produce only when needed
Pull Production (JIT)
Continuously improve processes
Continuous Improvement (Kaizen)
Empower and respect people at all levels
Respect for People
Types of Wastes in Lean
Overproduction
Waiting
Transportation
Over-Processing
Motion
Defects
Inventory
Producing more than what is needed, leading to excess inventory
Overproduction
Idle time when resources are not being utilized
Waiting
Unnecessary movement of materials or products
Transportation
Doing more work than necessary for customer requirements
Over-Processing
Unnecessary movement by people within the workspace
Motion
Production errors that require rework or discard
Defects
Excess raw materials, work-in-process, or finished goods
Inventory
Lean Tools and Techniques
5S (Sort, Set in Order, Shine, Standardize, Sustain)
Kanban
Value Stream Mapping
Poka-Yoke (Error Proofing)
Benefits of Lean Systems
Cost Reduction
Quality Improvement
Increased Flexibility
Higher Employee Engagement
Lower inventory costs, reduced waste, and optimized processes
Cost Reduction
Fewer defects and errors
Quality Improvement
Adapt to changes quickly due to real-time demand
Increased Flexibility
Respect for people and focus on improvement empower employees, boost job satisfaction and productivity
Higher Employee Engagement
It was pioneered by Toyota
The Philosophy of JIT
It was centered around minimizing waste to improve efficiency
The Philosophy of JIT
It was producing only what is needed, in the right quantity, and exactly when needed
The Philosophy of JIT
JIT Core Mechanisms
Demand-Driven Production
Minimizing Inventory Levels
Close Supplier Relationships
Quality Control and Consistency
Flexible Workforce and Cross-Training
Reducing Waste and Improving Flow
How JIT Works
Order Placed
Just-in-Time Manufacturing
Order Delivery
Just-in-Time Manufacturing includes:
Material Delivery Just in Time
Production Aligned to Demand
Consistent Quality Checks
Key Elements of JIT In Manufacturing
Reduced Inventory Levels
Improved Quality Control
Efficient Supplier Relationships
Use of the Pull System
Benefits of JIT In Manufacturing
Lower storage and holding costs
Reduced waste from overproduction and unused inventory
Faster response to customer demands and market changes
Greater focus on quality control at every step of production
This customizes many of its motorcycles based on specific customer orders.
JIT at Harley Davidson
They keep very low levels of parts and raw materials in stock
JIT at Harley Davidson
They work closely with suppliers to create a synchronized supply chain, parts arrive exactly when needed.
JIT at Harley Davidson
Key Elements of JIT In Services
Demand Driven Scheduling
Resource Optimization
Minimizing Service Inventory
Employee Cross Training
Benefits of JIT in Services
Reduced wait times and improved customer satisfaction
Lower operational costs by reducing excess staff and resources
Increased flexibility and responsiveness to customer needs
Improved resource utilization and employee productivity
It uses demand forecasting and analytics to keep track of inventory needs, ensuring that medical supplies, medications, and surgical kits are stocked based on daily or weekly demand.
JIT at The Medical City (TMC)
They coordinate with suppliers for frequent deliveries of medications and pharmaceutical products, based on real-time demand data
JIT at The Medical City (TMC)
It uses real-time data to allocate staff and resources based on current patient volume
JIT at The Medical City (TMC)
TQM supports JIT by fostering a commitment to quality in every production stage, aiming to prevent defects and focus on continuous improvement.
JIT and TQM
It emphasizes "quality at the source," meaning issues are addressed immediately rather than after the fact.