Aircraft systems
Classified in Technology
Written at on 
English with a size of 2.77 KB.
Lean systems are Operations systems that maximize the value added by each of a company’s Activities by removing waste and delays from them.
Toyota Production System (TPS)
Just-in-time (JIT) system
JIT philosophy – Eliminate waste or muda by cutting unnecessary capacity or inventory and Removing non-value-added activities
The goal is to Eliminate the eight types of waste, produce services and products only as Needed, and to continuously improve the value-added benefits of operations.
Close supplier ties
Look for ways to improve efficiency and reduce inventories Throughout the supply chain
JIT II: In-plant Representative
Supply Chain Considerations in Lean Systems
Small lot sizes: Reduce The average level of inventory. Pass Through system faster. Achieve uniform workload and prevent overproduction. Increase setup frequency
Process Considerations in Lean Systems
Pull method of work flow
Pull method vs. Push method
Quality at the source
Jidoka
Poka-yoke -- mistake proofing
Andon
Uniform workstation loads
Process Considerations In Lean Systems
Standardized components and work methods
Flexible workforce
Automation
Total Preventive Maintenance (TPM)
Five S (5S) practices
Designing Lean System Layouts
line flows
One worker, multiple machines (OWMM)
Group technology
Group parts or products with similar characteristics into Families
Eight types of waste Or muda
1 Overproduction: manufacturing an item before it is needed
2 Inappropriate processing: using expensive high precision Equipment when simpler machines would suffice
3 Waiting: wasteful time incurred when product is not being Moved or processed
4 Transportation: excessive movement and material handling Of product between processes
5 Motion: unnecessary effort related to the ergonomics of Bending, stretching, reaching, lifting and walking
6 Inventory excess inventory hides problems on the shop Floor, consumes space
7 Defects: quality defects result in rework and scrap, and Add wasteful costs to the system in the form of lost capacity, rescheduling Effort, increased inspection and loss of customer good will
8 underutilization of employees: failure of the firm to Learn from and capitalize on its employees knowledge and creativity impedes Long term efforts to eliminate waste