Using the extended value stream mapping tool in lean six sigma methodologies for lean supply chains

Various tools and techniques have been developed to improve the flows of value streams in manufacturing facilities. But the effectiveness of lean implementation is usually constrained by business partners. Supply chain management focuses on cutting overall costs. For shorter lead times, lower costs, and higher levels of customer satisfaction in the whole supply chain lean flows need to be created throughout the supply chain.This study presents the implementation of an effective lean tool: extended value stream mapping in the methodology of DMAIC the Lean Six Sigma framework in order to achive the lean supply chain of overall value stream from raw material suppliers to the end customers. A case study is also presented for total lead time reduction and on time delivery increase of a product family using the extended value stream mapping to apply lean tools.