Total Quality Management Part 2 of 2
In his later years, Deming taught many concepts, which he
emphasized by key sayings or quotations that he repeated, although some of the
concepts appear to be contradictory to each other. A number of these quotes are
listed below:
·
"There
is no substitute for knowledge."
This statement emphasizes the need to know more, about everything in the
system. Previously, the statement, "There is no substitute for hard
work" by Thomas Alva Edison (1847–1931) was the byword of industry. Deming suggested that instead, a small amount
of knowledge could save many hours of hard work.
·
"In
God we trust; all others must bring data."
·
"The
most important things cannot be measured." The issues that are most important, long term, cannot be
measured in advance. However, they might be among the factors that an
organization is measuring, just not understood as most important at the time.
·
"The
most important things are unknown or unknowable." The factors that have the greatest impact, long term, can
be quite surprising. Analogous to an earthquake that disrupts service, other
"earth-shattering" events that most affect an organization will be
unknown or unknowable, in advance. Other examples of important things would be
a drastic change in technology, or new investment capital.
·
"Experience
by itself teaches nothing.” This
statement emphasizes the need to interpret and apply information against a
framework. It is in contrast to the old statement, "Experience is the best
teacher". To Deming, knowledge is
best taught by a master who explains the overall system through which
experience is judged; experience, without understanding the underlying system,
is just raw data that can be misinterpreted against a flawed theory of reality.
·
"By
what method?... Only the method counts."
When information is obtained, or data is measured, the method, or process used
to gather information, greatly affects the results. Aim and method are
essential. An aim without a method is useless. A method without an aim is
dangerous. It leads to action without direction and without constancy of
purpose. Deming used an illustration of washing a table to teach a lesson about
the relationship between purpose and method. If you tell someone to wash a
table, but not the reason for washing it, they cannot do the job properly (will
the table be used for chopping food or potting plants?). The information about
why the table needs to be washed, and what is to be done with it, makes it
possible to do the job intelligently.
·
"You
can expect what you inspect."
Deming emphasized the importance of measuring and testing to predict typical
results. If a phase consists of inputs + process + outputs, all 3 are inspected
to some extent. Problems with inputs are a major source of trouble, but the
process using those inputs can also have problems. By inspecting the inputs and
the process more, the outputs can be better predicted, and inspected less.
Rather than use mass inspection of every output product, the output can be
statistically sampled in a cause-effect relationship through the process.
·
"Special
Causes and Common Causes":
Deming considered anomalies in quality to be variations outside the control
limits of a process. Such variations could be attributed to one-time events
called "special causes" or to repeated events called "common
causes" that hinder quality.
·
Acceptable
Defects: Rather than waste efforts on
zero-defect goals, Deming stressed the importance of establishing a level of
variation, or anomalies, acceptable to the recipient (or customer) in the next
phase of a process. Often, some defects are quite acceptable, and efforts to
remove all defects would be an excessive waste of time and money.
·
The Deming
Cycle (or Shewhart Cycle): As a
repetitive process to determine the next action, the Deming Cycle describes a
simple method to test information before making a major decision. The 4 steps
in the Deming Cycle are: Plan-Do-Check-Act (PDCA), also known as
Plan-Do-Study-Act or PDSA. The cycle can be used in various ways, such as
running an experiment: PLAN (design) the experiment; DO the experiment by
performing the steps; CHECK the results by testing information; and ACT on the
decisions based on those results.
·
Semi-Automated, not Fully Automated: Deming lamented the problem of automation gone awry
("robots painting robots"): instead, he advocated human-assisted
semi-automation, which allows people to change the semi-automated or
computer-assisted processes, based on new knowledge. Compare to Japanese term
'autonomation' (which can be loosely translated as "automation with a
human touch").
·
"What
is a system? A system is a network of interdependent components that work
together to try to accomplish the aim of the system. A system must have an aim.
Without an aim, there is no system. The aim of the system must be clear to
everyone in the system. The aim must include plans for the future. The aim is a
value judgment. (We are of course talking here about a man-made system.)
·
"A system
must be managed. It will not manage itself. Left to themselves in the Western
world, components become selfish, competitive, independent profit centres, and
thus destroy the system. . . . The secret is cooperation between components
toward the aim of the organization. We can not afford the destructive effect of
competition.
·
"To
successfully respond to the myriad of changes that shake the world,
transformation into a new style of management is required. The route to take is
what I call profound knowledge—knowledge for leadership of transformation.
·
"The
worker is not the problem. The problem is at the top! Management!"
·
"They realized that the gains that you
get by statistical methods are gains that you get without new machinery,
without new people. Anybody can produce quality if he lowers his production
rate. That is not what I am talking about. Statistical thinking and statistical
methods are to Japanese production workers, foremen, and all the way through
the company, a second language. In statistical control, you have a reproducible
product hour after hour, day after day. And see how comforting that is to
management, they now know what they can produce, they know what their costs are
going to be.”
·
"I
think that people here expect miracles. American management thinks that they
can just copy from Japan—but they don't know what to copy!"
·
With the
best of intentions and best efforts, managing by results is, in effect, exactly
the same, as driving your automobile while keeping your eye on the rear view mirror.
What would happen? That's what management by results is, keeping your eye on
results.”
·
"Knowledge
is theory. We should be thankful if action of management is based on theory.
Knowledge has temporal spread. Information is not knowledge. The world is drowning
in information but is slow in acquisition of knowledge. There is no substitute
for knowledge."
·
"Uncertainty
makes research predictable, but you still need proof to satisfy everyone
else."
·
"The
most important figures that one needs for management are unknown or unknowable,
but successful management must nevertheless take account of them."
While Deming’s principles were developed for
business, and specifically for manufacturing, I looked for nuggets that I might
be able to apply to my life, believing that a philosophy that turned around a
country’s economy in less than a decade is profoundly significant. Adaptations
of his Total Quality Management principles and quotations that keep running
through my mind are the
are the following:
·
Build quality in what I do and avoid
looking for mistakes after I’m done. By inspecting the inputs and the process more, the outputs
can be better predicted, and inspected less.
·
Look for ways to have pride of
workmanship
·
There is no substitute for knowledge,
but experience by itself teaches nothing – it must be within some context.
·
Aim and method are essential. A
direction is essential before the process can be effective – Am I washing the
table to perform surgery on it or to sort the mail?
·
Plan-Do-Study-Act
·
Managing by results is like driving with
your eyes on the rear view mirror