The Lean Enterprise

1. The Lean Enterprise VSM Symbols Lean Foundations Continuous Improvement Training

2. Value Stream Symbols and Definitions Addendum to Value Stream Mapping

3. WELDING ABC COMPANY C/T=120 sec. C/O=22 min. 3 SHIFTS W/T=20 hrs 3% SCRAP I Tuesday + Thurs Material Icons Represents Notes Manufacturing Process One box equals an area of continuous flow. All processes should be labeled. Box also used to identify departments such as production control. Outside Sources Used to show customers, suppliers and outside manufacturing processes. Process Data Box Used to record information concerning a manufacturing process, department, etc. Count and time should be noted. Inventory 225 pieces 1.5 days Note the frequency of shipments. Truck Shipment

4. FIFO Material Icons Represents Notes Air Shipment Create rail or other icons as needed. Movement of prod’n material by PUSH Identifies material movements that are pushed by producer, not pulled by the customer ( the following process ). Movement of finished goods to the customer Also shows movement of raw material and components from suppliers if they are not pushed. Supermarket Physical pull Pull of materials from a supermarket. Transfer of controlled quantities of material between processes in a first in first out seq. Indicates a device to limit quantity and ensure FIFO flow of material between processes.

5. Information Icons Represents Notes For example: production schedule shipping schedule Manual flow of information For example: EDI, Fax, etc. Electronic flow of information Describes an information flow. Information Weekly Schedule Tool to level the volume and mix of Kanban over a specific period of time. OXOX Load leveling Sequence-Pull Ball Gives permission to produce a predetermined type and quantity.

6. Information Icons Represents Notes 20 Production Kanban Tells a process how many of what can be produced and gives permission to do so. Tells a process how many of what can be withdrawn and gives permission to do so. Withdrawal Kanban Production instruction that orders production from a batch process, eg: stamping. Signal Kanban Place where Kanban are collected and held for conveyance . Kanban post

7. Lathe Changeover General Icons Represents Notes Highlights critical improvement needs at specific processes. Can be used to plan Kaizen events. Kaizen lightning burst “Buffer” or “Safety Stock” must be noted. Buffer or safety stock

8. The Lean Enterprise VSM Symbols Lean Foundations Continuous Improvement Training