Richard Millard analyzed nine different approaches to value stream mapping in the aerospace
industry (Millard, 2001). The tools were evaluated regarding their level of sophistication, as
well as the business context surrounding the application of the tools. The findings show that
tool sophistication correlates positively with the success of a value stream mapping activity.
Also, a positive business environment is important, as it encourages and enables the use of
more sophisticated tools. A general approach to value stream mapping of the current state, as
well as the development of a desired future state, is presented. This approach uses high level
Gantt charts, detailed process flow maps and a design structure matrix on the detailed level.