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1、The Lean EnterpriseThe Lean Enterprise VSM Symbols VSM SymbolsLean Foundations Lean Foundations Continuous Improvement TrainingContinuous Improvement TrainingValue Stream Symbols Value Stream Symbols and Definitionsand Definitions Addendum Addendum toto Value Stream Mapping Value Stream MappingManuf

2、acturing ProcessProcess Data BoxITruck ShipmentInventoryMaterial IconsRepresentsNotesOutside SourcesOne box equals an area of continuousflow.All processes should be labeled.Box also used to identify departmentssuch as production control.Used to show customers,suppliersand outside manufacturing proce

3、sses.WELDINGABCCOMPANYC/T=120 sec.C/O=22 min.3 SHIFTS3%SCRAPW/T=20 hrsUsed to record information concerninga manufacturing process,department,etc.Count and time should be noted.225 pieces 1.5 daysTuesday+ThursNote the frequency of shipments.Material IconsRepresentsNotesFIFOAir ShipmentMovement of pr

4、odnmaterial by PUSHMovement of finishedgoods to the customerSupermarketPhysical pullTransfer of controlledquantities of material between processes in afirst in first out seq.Create rail or other icons as needed.Identifies material movements that arepushed by producer,not pulled by the customer(the f

5、ollowing process).Also shows movement of raw materialand components from suppliers ifthey are not pushed.Pull of materials from a supermarket.Indicates a device to limit quantityand ensure FIFO flow of materialbetween processes.Information IconsRepresentsNotesManual flow ofinformation Electronic flo

6、w ofinformation For example:production schedule shipping scheduleFor example:EDI,Fax,etc.OXOXLoad leveling Sequence-Pull Ball Tool to level the volume and mixof Kanban over a specific periodof time.Gives permission to produce apredetermined type and quantity.WeeklyScheduleInformationDescribes an inf

7、ormation flow.Information IconsRepresentsNotes20Production KanbanWithdrawal KanbanSignal KanbanKanban postTells a process how many of whatcan be produced and gives permissionto do so.Production instruction that ordersproduction from a batch process,eg:stamping.Place where Kanban are collectedand hel

8、d for conveyance.Tells a process how many of whatcan be withdrawn and gives permissionto do so.LatheChangeoverGeneral IconsRepresentsNotesKaizen lightning burstBuffer or safety stockHighlights critical improvement needsat specific processes.Can be used toplan Kaizen events.“Buffer”or“Safety Stock”must benoted.The Lean EnterpriseThe Lean Enterprise VSM Symbols VSM SymbolsLean Foundations Lean Foundations Continuous Improvement TrainingContinuous Improvement Training