This is due to the four main reasons includes improved processes can make products
with guaranteed high quality, high quality gives producers a competitive advantage, consumers have become
used to high quality products, and will not accept anything less and high quality reduces costs such as
prevention, appraisal, internal failure and external failure costs (Bernstein, 1984). Traditional companies
believe quality is costly, defects are caused by workers and the minimum level of quality that can satisfy the
customer is enough. Organizations practicing the Kanban system believe that quality leads to lower costs, that
systems caused most defects, and that quality can be improved within the kaizen framework (Balram, 2003)..