As can be seen fromTable 3, a 30% increment in value added steps
due to removal of waste steps is achieved. The percentage of valued
added time is increased from 21% to 71% (50%). This increase is mainly
due to improvement of value added steps in PDP. Waiting time is
reduced from 272 days to 30 days. There is also a significant decrease
in the total number of hand-offs from one department to another
department for many iterations (from 87 to 23). Supplier involvement
from the beginning reveals to be the main reason to reduce so many
handoffs. Therefore, early involvement in the team meetings will
reduce the uncertainty in the beginning of the design phase. A final
decision could be reached through meetings as compared to making
multiple changes later. The total number of iterations is also reduced
to 8 from 17.