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This First Principle states that, "a fundamental understanding of BOTH the product and process is essential to improvement. Both the product and process must be understood individually and separately. The underlying component for improving the product is the process." If a knowledge base is composed solely of product information, when change occurs the reasons for the change will be unknown. If we notice a change in the product, it stands to reason that some part of the process has altered. Change can be either improvement or deterioration. If change results in deterioration, it will take much longer to correct the problem and again produce tolerable product. If the change results in improvement, it will be almost impossible to consistently replicate the new and better product. In "Practical Understanding of Capability by Implementing Statistical Process Control" author James Abbott explains how to build a product process knowledge base using the Walkabout(tm) Dependency Diagram. Mr. Abbott developed this tool specifically for his clients' use during and after their improvement program implementations. Utilizing the Walkabout(tm) provides a total framework for studying, understanding, and sharing product and process knowledge. This simple method of documenting the process and product characteristics ("metrics") focuses exactly on what measurements need to be taken and monitored, eliminating confusion on the shop floor.
The Second Principle of Process Management states that "Division of Labor is the framework for all aspects of decision-making. It must be clearly understood to separate the strategic and tactical decisions. Operations make the tactical decisions of running the facility. Management makes the strategic decisions of assessing the facility's suitability for the job." These two groups are independent, yet equal parts of the same team. Both of these groups must understand and brilliantly execute their roles for proper Statistical Process Control (SPC). SPC falls under the umbrella of Statistical Quality Control (SQC). SPC was designed to monitor any continuous process, machine, operation, or system. It is an accurate indicator of product and process consistency; it is a change detector; it is a capability assessor. SPC is composed of two tools: control charts and capability studies. A facility's tacticians (operators) use control charts for monitoring the process and product and noting any changes. When a change has been noted, the strategists use capability studies to assess the impact of the change on the customer. Both control charts and capability studies must be used in conjunction to properly identify and maintain improvements. --This text refers to an out of print or unavailable edition of this title.
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Most Helpful Customer Reviews
16 of 16 people found the following review helpful:
1.0 out of 5 stars
This author doesn't know the first thing about statistics,
By
This review is from: SPC: Practical Understanding of Capability by Implementing Statistical Process Control, third edition (Walkabout) (Hardcover)
I think that it is sad that a book of such extremely poor technical quality, which the author believes is "practical understanding", fools so many people who do not understand statistics themselves. If you have not been exposed to statistics for sometime, or have always wanted to learn statistical methods, then this should not be your first book. Anyone who has been exposed to a good book on statistics, or attended a class or seminar on statistics, will quickly see that this book contains numerous incorrect definitions and interpretations of statistical terms and methods. A book review of this book by noted statistician, Lloyd Nelson (who is an ASQ Fellow and Shewhart medalist) appeared in the April 2001 issue of the Journal of Quality Technology.As an example, the author defines the binomial distribution as one which has two modes, which he has confused with the biMODal distribution. The range is defined as the (data point - average), which would produce both positive and negative values. Of course, the range is known (by everyone else except the author) as the difference between the largest and smallest values of a set of data, so it can never assume a negative value. His discussion of control charts also demonstrates a lack of understanding as to their use and the underlying distributions on which they are based. For instance, his statement that the binomial and Poisson distributions are a special case of the normal distribution is blatantly incorrect. The list of examples goes on and on, and many more can be found in Nelson's book review. The best advice this reviewer can give someone shopping for an easy to read and credible book on statistics is to pass this one up, save your money, and keep looking. If you subscribe to one of the journals of ASQ (American Society for Quality), namely the Journal of Quality Technology and Technometrics, then read their book reviews. The reviewers are very knowledgable and are composed of Senior Members and Fellows who have considerable practical and theoretical knowledge. They can offer valuable information on which books give the best value for the money.
10 of 13 people found the following review helpful:
5.0 out of 5 stars
A Different SPC Book,
By A Customer
This review is from: SPC: Practical Understanding of Capability by Implementing Statistical Process Control, third edition (Walkabout) (Hardcover)
This is a different SPC book. You catch something of it in the subtitle: Practical Understanding of Capability by Implementing Statistical Process Control. The material seems to come from aomeone who has spent time solving process problems instead of attending seminars.The writer seems more concerned about the reader getting the job done than saying all the right words and pushing the latest hot buttons. Abbot has written several books and the ones I have read all have this same flavor. The ideas are different. The appproach is different. If you are interested in becoming a practical solver of process problems and pass up this author, you have left something on the table.
1 of 1 people found the following review helpful:
1.0 out of 5 stars
Worst book for SPC users,
By A Customer
This review is from: SPC: Practical Understanding of Capability by Implementing Statistical Process Control, third edition (Walkabout) (Hardcover)
This text is one of the worst in terms of technical merit and correctness. The author obviously does not have much of an idea about statistics and how to implement SPC....
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