Value Stream Mapping in Industry

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Value Stream Mapping 1 Value Stream Mapping Definition • Value Stream Mapping (VSM): – Special type of flow chart that uses symbols known as "the language of Lean" to depict and improve the flow of inventory and information. 2 Value Stream Mapping Purpose • Provide optimum value to the customer through a complete value creation process with minimum waste in: – Design (concept to customer) – Build (order to delivery) – Sustain (in-use through life cycle to service) 3 Why ? • Many organizations pursuing “lean” conversions have realized that improvement events alone are not enough • Improvement events create localized improvements, value stream mapping & analysis strengthens the gains by providing vision and plans…show more content…
Manual Info Icon : A straight, thin arrow shows general flow of information from memos, reports, or conversation. Frequency and other notes may be relevant. Electronic Info Icon : This wiggle arrow represents electronic flow such as electronic data interchange (EDI), the Internet, Intranets, LANs (local area network), WANs (wide area network). You may indicate the frequency of information/data interchange, the type of media used ex. fax, phone, etc. and the type of data exchanged. Production Kanban Icon : This icon triggers production of a predefined number of parts. It signals a supplying process to provide parts to a downstream process. Withdrawal Kanban Icon : This icon represents a card or device that instructs a material handler to transfer parts from a supermarket to the receiving process. The material handler (or operator) goes to the supermarket and withdraws the necessary items. 14 Value Stream Mapping Information Symbols (Cont.) Signal Kanban Icon : used whenever the on-hand inventory levels in the supermarket between two processes drops to a trigger or minimum point. It is also referred as “one-per-batch” kanban. Kanban Post Icon : a location where kanban signals reside for pickup. Often used with two-card systems to exchange withdrawal and production kanban. Sequenced Pull Icon: represents a pull system that gives instruction to subassembly processes to produce a
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