vsm - Value Stream Mapping of a Complete Product What is...

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Value Stream Mapping of a Complete Product
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What is Value Stream Mapping (VSM)? A ‘Value Stream’ (VS) is “all the actions (both value- -added and non-value-added) currently required to bring a product through the main flows essential to every product” . Value Stream Mapping (VSM) is “the process of mapping the material and information flows of all components and subassemblies in a value stream that includes manufacturing, suppliers, distribution and the customer”.
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Power of Value Stream Mapping (VSM) VSM is a mapping tool that maps not only material flows but also information flows that signal and control the material flows. This visual representation facilitates the process for implementation of Lean Thinking by helping to identify the value-adding steps in a value stream and eliminating the non-value adding steps, or waste (muda) in flow paths of products.
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An Example of a Current State Map
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An Example of a Future State Map
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Advantages of Value Stream Mapping Relates the manufacturing process steps to other components of the supply chain viz. distributors, suppliers and production control. Integrates material and information flows . Links Production Control and Scheduling (PCS) functions to Shopfloor Control. Integrates various IE techniques for material and information flow analysis.
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Disadvantages of Value Stream Mapping Fails to map multiple products that do not have identical routings. Fails to relate plant layout and/or material handling to process and equipment parameters. Lacks any economic measure for “value”. Lacks the spatial structure of the facility layout. Biased towards high-volume low-variety manufacturing systems. Fails to capture the time value (in $) of the flow delays due to setup, processing, queuing (at each process step), material handling, etc. delays due to capacity constraints and order sequencing at each process step.
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Basis for Value Network Mapping (VNM) Developed for products with complex BOM’s that have many components and several assembly levels. Developers of VSM state that “many value streams have multiple flows that merge. Draw such flows over one another. But do not try to draw every branch if there are too many. Choose the key components first, and get the others later if you need to .
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Where to use Value Network Mapping Raw Materials Finished Goods Production Flows in the Manufacturing Systems C1 C3 C2 C4 C5 C6 C7 C8 C9 C10 SA 2 SA 3 SA 4 SA 5 SA 1 C11 COMPONENTS SUB ASSEMBLIES ASSEMBLIES VSM APPLIES VERY WELL AT THIS LEVEL VNM APPLIES VERY WELL AT THIS LEVEL ASSEMBLY 2 ASSEMBLY 1
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Our Goal To use our method to map the complete network of flows for a complex product or large sample of parts. To computerize basic Industrial Engineering (IE) tools for
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This note was uploaded on 03/03/2011 for the course MARKETING 101 taught by Professor Singh during the Spring '11 term at Management Development Institute.

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vsm - Value Stream Mapping of a Complete Product What is...

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