In
organisations which are involved in TQM, their Managers
should not only know the elementary statistical system
but also sophisticated techniques. Middle management
and top management have a far higher task than the grass
root level employees and in their level, need of more
knowledge on the techniques is a necessity. The practice
of TQC not only requires numerical data but also verbal
data or verbal communication, which may not be computable.
Such verbal data or information could be from internal
as well as external sources. There should be suitable
methods to process this information with a view to arriving
at a complete plan. Keeping this in mind, a committee
researched in Japan for 5 years and developed the New
Seven Tools. These tools are not original creation but
arrived at after careful study of various existing techniques/tools.