VSM - Value Stream Mapping

VSM is a tool Lean value stream mapping within an organization, areas, sections or production line, can approach suppliers, customers or other factories from the group.
VSM is a visual representation of the process flow and the information within it, information about indicators of production, quality, maintenance, process, visual communication tool able to identify and support the elimination of losses.
By a clear picture, as long as it is real, VSM underline the problems, and help identify improvement potential.