Customer Reviews

Quantum Leap: In Speed to Market

5 star:		(9)
4 star:		(0)
3 star:		(0)
2 star:		(1)
1 star:		(3)

 

 

Overall, I was very disappointed with this book. I agree with the general concept of Costanza's philosophy, but he left out the chapter on how to actually deploy his methodology. Platitude after platitude, I read about the results I could expect, but was left empty handed when it came to implementation. In addition, I felt that I have already read about this concept while reading about the Toyota Production System and Goldratt's Theory of Constraints among other mathematically based technologies. It appears that all Costanza has done is packaged and marketed existing manufacturing methodologies into a "new" technology.

Wow! "The Quantum Leap" opened my eyes to a great new way of manufacturing and doing business. John Costanza's book is a comprehensive blue print and guide to manufacturing which relies on customer demand - rather than guess work - to get the job done in record time. The one word to describe what John Costanza teaches throughout this book is QUALITY. One learns how to design quality into the process and the product from the very start, reducing rework by a huge amount. John Constanza's Demand Flow Technology is very straight forward, after reading this book I was left wondering "why haven't we been doing it this way all along? it makes perfect sense." I have recommend "The Quantum Leap" to all my colleagues.

After reading lots of books on the subject of modern-day manufacturing, Mr. Costanza's book had one thing that the others didn't. It strongly focuses on the practical deployment of Flow and Lean Manufacturing - most others merely describe the subject from a philosophical perspective. The book contains what you need to know about the subject. It enables you go out and start improving your business. Our company actually gained substantial benefits from implementing the tools described. It's a pure career booster!

Flow technology was once used at our organization but has been replaced by the traditional Lean and Six-Sigma tools and initiatives. Please make note the some formulas and definitions used in DFT are significantly different than standard Lean items and will cause confusion and some resistance if you try to mix them. Cycle time, takt time and kanban sizing are some examples. I purchased my book for a reference in addressing such issues.

This is the best approach I've seen. This results driven methodology makes improvements happen quickly. I would, however, skip the first couple chapters to get to the meat and potatoes. If you're looking to be a hero your answers are in Demand Flow! Thanks for the help John Costanza!

I have read many books on "Manufacturing" & its many methods & how various people claim to be able to "Slash" this , "Reduce" that, and yet, to date, none have left me in a position post read, to be able to communicate a consistant message to my colleagues, as they were all based around your interpretation of the text & fancy graphs, that never relate to my business!
Thank you John Costanza! - Finally, I now have the "tools" to point to, rather than try and convince my team to change things, just because I say so.
Using the Demand Flow Technology tools, you can let the data you gather & calculate, start to drive the then obvious direction needed.
Reading a book is easy, shifting my Companies Culture was not, believe me!, but with DFT, you can let what has no voice, start to talk, because its your real data, your real issues, your very real & unique people + DFT, not my opinion, not theirs, just "OURS", dont work for an average Company, this I promise you, can make both YOU & YOUR COMPANY NUMBER ONE!

Self promotion 100%. Look at the dates on the 5 star reviews. All within one week of one another, and several the same day. Who is this man Costanza? A self promoter. Save your money and buy Lean Thinking.

Although the overall approach is reasonable, it has not been invented by Constanza. It is my opinion that this is just "new" marketing of an old good idea.
As for the book itself -- is primitively written, fails to explore notions that need exploring and, at the same time, wastes pages explaining simplest things, including even formulas (something like "... quantity would be 120 times 17 times 2 divided by 7.5..." -- you got the picture).
Overall, very dissatisfied with the book.

Have you ever looked for a set of tools to lead you to reducing manufacturing response? John Costanza has put them all together in a format that is easy to read and understand. Each tool is clearly explained within the manufacturing context. John also clearly shows that to be successful all disciplines within the organization must be on board to achieve the greatest success. A life saver for manufacturing!!

After reading and implementing the concepts contained in The Quantum Leap, our company immediately started to realize amazing gains. Our bottom line increased significantly. From the factory floor to the corporate offices, everyone in our organization has increased their productivity. This is an amazing tool for those who want a profitable organization. John Costanza has written a winner. I Highly recommend this book to those who want to immediately bring order and profits to their company.