LEI have always recommended drawing maps by hand. Does eVSM mean that the institutes position has changed?
A. No. Value-stream mapping is a paper-and-pencil tool that helps us to see and understand the flow of material and information as a product makes its way through a value stream. There are a lot of benefits to drawing value-stream maps by hand with paper and pencil. Manual mapping requires us to go see what is actually happening in a shop or office value stream. And the process of quickly drawing and redrawing a map acts as a plan-do-check-act (PDCA) cycle that deepens our understanding of the overall flow of value – or lack of it. There is no substitute for observing value-stream activities in person and drawing maps by hand. Software is not a prerequisite for a mapping effort. However, there also are benefits to electronic maps. In our web site Forums, members of the Lean Community have pointed out that electronic maps are great for sharing and for presentations. In fact, members have used diverse software programs to create their own electronic renderings of hand-drawn maps. eVSM is
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