Lean

PRINCIPLES OF LEAN

VALUE ADDED

• What the customer is willing to pay for.

VALUE STREAM CATEGORIES OF ACTIVITIES

• Those that unambiguously add value.
• Those that create no value but are unavoidable.
• Those that add no value and can be eliminated.

CATEGORIES OF WASTE

• Overproduction
  Producing something unnecessary, or before it is required, unnecessary functions or features.


• Inventory
  Work in progress, work carried out or materials available ‘just in case’. Decisions to be made, information to be checked or issued.


• Over-Processing
  Doing more work than is necessary for the customer, unnecessary steps in a process, unnecessary reviews, unnecessary approvals.


• Motion
  Unnecessary motion of people, information seeking.


• Transportation
  Unnecessary movement of materials/assemblies.


• Waiting
  Material waiting to be used, delays due to decisions or information flow. Delays in the process, delays in decisions.


• Defects
  The most obvious, but reducing all of the above will reduce defects.

7 CATEGORIES OF SERVICE WASTES

• Delay
• Duplication
• Unnecessary Movement
• Unclear Communications
• Incorrect Inventory
• Opportunity
• Errors

Click on the above images to see the value streams to which the above processes can be implemented.

UNDERSTAND VALUE FROM THE CUSTOMER PERSPECTIVE

MAKE VALUE FLOW

ALLOW THE CUSTOMER TO PULL

SEEK PERFECTION