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1、Value Stream Value Stream Value Stream Value Stream MappingMappingMappingMapping 2 Value Steam Mapping The Value Stream a definition All of the steps required to bring a product or service from raw state through to the customer Total Value Stream CustomerSupplierProcess A Process B Process C Interna
2、l Plant 3 Value Steam Mapping What is Value Stream Mapping Value Stream Mapping is a powerful technique that allows us to create a BIG PICTURE visual representation of All the steps in the process working back from customer demand to raw material The flow of both material and information and the eff
3、ect they have on each other The distinction between value added and non value added activity WASTE The effect all of the above have on meeting the customer s requirements 4 Value Steam Mapping Under utilized People Over production Waiting manpower material machine Transportation Inventory Scrap Rewo
4、rk Motion Processing The 8 Wastes 5 Value Steam Mapping 1 Scrap Rework Definition Any product that does not meet specifications and therefore either needs to be reworked or scrapped Goal 100 First Time Through Quality 6 Value Steam Mapping 2 Over production Under Definition Producing more than is ne
5、cessary often causing WIP Work In Process working on parts ahead of schedule while delinquent parts wait Goal Produce to Target Cycle Time then eventually produce all operations to Takt Time in the Future State 7 Value Steam Mapping 3 Inventory BeforeAfter If you had only 30 seconds to find the unit
6、 which storage system would you choose Definition material or parts that are stored for future use or shipment 8 Value Steam Mapping 4 Motion Definition Excessive motion beyond what is needed to get the job done Goal Same as Definition sitting walking turning around searching climbingchoosingbending
7、lying down over 9 Value Steam Mapping 5 Processing Over minimize or eliminate the travel distance between them 11 Value Steam Mapping 7 Waiting Definition a person or part s sitting idle while waiting for material a supervisor the next operation etc Goal Eliminate the unplanned interruptions that oc
8、cur due to inefficiencies Develop continuous flow wherever possible Convert waiting to value added work 12 Value Steam Mapping 8 Under utilized People Definition Skills untapped Ideas not implemented and improvements not realized Goal Tap into the energies and unused improvement ideas from the workf
9、orce 13 Value Steam Mapping Exercise Worksheet MANUFACTURING WASTES IDENTIFICATION SHEET Dept NO WASTE IDENTIFIED Scrap Rework Over Under Production Inventory Motion Processing Transportation Waiting Under utilized People 5S Sort Straighten Sweep Standardize Self Discipline John McLauchlinRevision D
10、ate 4 25 2000 14 Value Steam Mapping Value Stream Analysis Process 1 0 Select Champion and Initial Product Family 4 0 Implementation Planning and Execution 3 0 Design Future State 2 0 Gather Map and Analyze Selected Value Stream Data Value Stream Mapping 1 Understand business goals and customer obje
11、ctives 2 Select champion and value stream leaders based on proven criteria for success 3 Define product families based on common processes and equipment 15 Value Steam Mapping Observations A common factor in all observed successful lean implementations is one or more empowered Champions Champions ar
12、e usually high level leaders who take on a pro active role shaping and supporting the lean initiatives and ensuring that system barriers are identified and addressed To start your lean journey you need a leader or set of leaders to Develop a strategic direction Agree to and communicate the strategic
13、 direction Make available the needed resources Provide continued visible support Without the support of a champion you should not attempt to implement lean practices and principles it is a recipe for disaster Lean Aerospace Initiative Leadership and Champions 16 Value Steam Mapping Small Group Activ
14、ity Identify who in your organization will fill these critical roles to support lean implementation Executive Champion Implementation Leader Operations Manager Technical Support Other Key Roles Briefly describe the role each person will have in supporting lean What can you do to get these people to
15、successfully support your efforts Executive Champion Implementation Leader Operational Mgr 17 Value Steam Mapping Define Product Families Analyze Product Volume Chart to separate high runners from low runners Analyze Product Process Matrix to identify similar processing steps and common equipment An
16、alyze Routings to identify common sequences focusing on Operations that can potentially be dedicated to the product family Operations that are neither monuments nor batch cycles Downstream processes most visible to the customer 18 Value Steam Mapping Analyze Product Volume Chart to separate high runners from low runners Product Volume Chart 0 500 1000 1500 2000 2500 3000 3500 4000 4500 2206215021702158210821422124210221722212222222022204 Part Number Annual Volume 19 Value Steam Mapping Analyze P
