Quality Control Through Six Sigma
Many people see Six Sigma as the most powerful quality management system or tool to be introduced.
There are many
industries including manufacturing, banking,
healthcare, and construction which have embraced
the principles of Six Sigma. Six Sigma includes
DMAIC and DMADV, which are acronyms for
methodologies for improving current processes
and future process respectively.
What Makes Six Sigma The Finest Quality Tool
Ever?
Motorola was the founder and pioneer for the
implementation of Six Sigma, and its success
quickly brought the tool to center stage. The
entire organization is involved in the
implementation of the comprehensive and
structured approach behind Six Sigma. In order
for Six Sigma to work an organization needs to
devote 100% of its time to the unique problem
solving techniques it includes.
Projects are identified and analyzed by top
management personnel with key roles in the
process. Problem solving and the removal of
trans-jurisdictional bottlenecks are handled by
middle implementation groups like Champions or
Master Black Belts. The implementation of
positive changes can be derailed by
trans-jurisdictional bottlenecks, so this part
of the process is vital to its success. These
problems can be efficiently handled by
Champions, while Master Black Belts are experts
at using statistical tools and solving problems.
The statistical tools that are used are highly
versatile and customized to the unique
application. They are designed to be used to
measure and question the processes of a
particular business, analyzing them and offering
correction when needed. Six Sigma is the
ultimate management tool which may allow your
organization to achieve an incredibly low defect
rate, save millions of dollars, and create
stronger relationships with customers. This may
sound too good to be true and you may be
wondering if there have ever been any failures
with Six Sigma.
One example of a Six Sigma failure is the
satellite phone Iridium which was produced by
Motorola which pioneered Six Sigma. While the
phone was of outstanding quality, customers
simply did not want it and it was a complete
flop. This proves that even with the highest
level of quality and efficiency, customers will
only purchase those items which they want.
Some experts have pointed out some statistical
snags in Six Sigma. These experts are critical
of Six Sigma’s universal standard rule and
suggest that the analysis would be more accurate
if each task was looked at individually using
more common tools such as decision, theory, and
cost benefit analysis.
There are those that claim that Six Sigma is
simply a marketing ploy designed to make lots of
money for business consultants. They say that
Six Sigma training and implementation lacks
consistency, especially since the methodology is
taught and practiced in only one way. Many claim
that the Six Sigma success stories are mainly
from companies that were total failures in
quality control and that the examination of
small areas is what brought the big
improvements.

