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Descriptions du produit

Revue de presse

 “This is great stuff! Your descriptions are so vibrant and vivid that I’m rediscovering the truth buried in OO principles that are otherwise so internalized that I forget to explore them. Your thoughts on design and knowing the future are especially eloquent.”

—Ian McFarland, President, New Context, Inc.


“As a self-taught programmer, this was an extremely helpful dive into some OOP concepts that I could definitely stand to become better acquainted with! And, I’m not alone: there’s a sign posted at work that reads, ‘WWSMD? – What Would Sandi Metz Do?’”

—Jonathan Mukai, Pivotal in NYC


“Meticulously pragmatic and exquisitely articulate, Practical Object Oriented Design in Ruby makes otherwise elusive knowledge available to an audience which desperately needs it. The prescriptions are appropriate both as rules for novices and as guidelines for experienced professionals.”

—Katrina Owen, developer, Bengler


“I do believe this will be the most important Ruby book of 2012. Not only is the book 100% on-point, Sandi has an easy writing style with lots of great analogies that drive every point home.”

—Avdi Grimm, Author of Exceptional Ruby and Objects on Rails

“While Ruby is an object-oriented language, little time is spent in the documentation on what OO truly means or how it should direct the way we build programs. Here Metz brings it to the fore, covering most of the key principles of OO development and design in an engaging, easy-to-understand manner. This is a must for any respectable Ruby bookshelf.”

–Peter Cooper, editor, Ruby Weekly


“So good, I couldn’t put it down! This is a must-read for anyone wanting to do object-oriented programming in any language, not to mention it has completely changed the way I approach testing.”

–Charles Max Wood, video and audio show host, TeachMeToCode.com


“Distilling scary OO design practices with clear-cut examples and explanations makes this a book or novices and experts alike. It is well worth the study by anyone interested in OO design being done right and ‘light.’ I thoroughly enjoyed this book.”

–Manuel Pais, editor, InfoQ.com


“If you call yourself a Ruby programmer, you should read this book. It’s jam-packed with great nuggets of practical advice and coding techniques that you can start applying immediately in your projects.”

–Ylan Segal, San Diego Ruby User Group


“This is the best OO book I’ve ever read. It’s short, sweet, but potent. It slowly moves from simple techniques to more advanced, each example improving on the last. The ideas it presents are useful not just in Ruby but in static languages like C# too. Highly recommended!”

–Kevin Berridge, software engineering manager, Pointe Blank Solutions, and organizer, Burning River Developers Meetup


“The book is just perfect! The elegance of Ruby shines but it also works as an A to Z of object-oriented programming in general.”

–Emil Rondahl, C# & .NET consultant


“This is an exceptional Ruby book, in which Metz offers a practical look at writing maintainable, clean, idiomatic code in Ruby. Absolutely fantastic, recommended for my Ruby hacker friends.”

–Zachary “Zee” Spencer, freelancer & coach


“This is the best programming book I’ve read in ages. Sandi talks about basic principles, but these are things we’re probably still doing wrong and she shows us why and how. The book has the perfect mix of code, diagrams, and words. I can’t recommend it enough and if you’re serious about being a better programmer, you’ll read it and agree.

–Derick Hitchcock, senior developer, SciMed Solutions


“I predict this will become a classic. I have an uncomfortable familiarity with programming literature, and this book is on a completely different level. I am astonished when I find a book that offers new insights and ideas, and even more surprised when it can do so, not just once, but throughout the pages. This book is excellently written, well-organized, with lucid explanations of technical programming concepts.”

–Han S. Kang, software engineer and member of the LA Rubyists


“You should read this book if you write software for a living. The future developers who inherit your code will thank you.”

–Jose Fernandez, senior software engineer at New Relic


“Metz’s take on the subject is rooted strongly in theory, but the explanation always stays grounded in real world concerns, which helped me to internalize it. The book is clear and concise, yet achieves a tone that is more friendly than terse.”

–Alex Strasheim, network administrator, Ensemble Travel Group


“This is an amazing book about just how to do object-oriented thinking when you’re programming in Ruby. Although there are some chapters that are more Ruby-specific, this book could be a great resource for developers in any language. All in all, I can’t recommend this book enough.”

–James Hwang, thriceprime.com


“Whether you’re just getting started in your software development career, or you’ve been coding for years (like I have), it’s likely that you’ll learn a lot from Ms. Metz’s book. She does a fantastic job of explaining the whys of well-designed software along with the hows.”

–Gabe Hollombe, software craftsman, avantbard.com


“In short, this is in my top five programming books I’ve ever read. I believe that in twenty years this will be considered one of the definitive works on object-oriented programming. I plan to re-read it at least once a year to keep my skills from falling into atrophy. If you’re a relatively new, intermediate, or even somewhat advanced OO developer in any language, purchasing this book is the best way I know to level up your OO design skills.”

–Brandon Hays, freelance software developer

Biographie de l'auteur

Sandi Metz has thirty years of experience working on projects that survived to grow and change. She now writes code every day as a software architect at Duke University, where her team solves real problems for customers who have large object-oriented applications that have been evolving for more than fifteen years. She has spoken at Ruby Nation and speaks regularly at the Gotham Ruby Users Conference.


Détails sur le produit

  • Broché: 272 pages
  • Editeur : Addison Wesley; Édition : 1 (5 septembre 2012)
  • Langue : Anglais
  • ISBN-10: 0321721330
  • ISBN-13: 978-0321721334
  • Dimensions du produit: 21,3 x 1,3 x 23,2 cm
  • Moyenne des commentaires client : 5.0 étoiles sur 5  Voir tous les commentaires (1 commentaire client)
  • Classement des meilleures ventes d'Amazon: 66.475 en Livres anglais et étrangers (Voir les 100 premiers en Livres anglais et étrangers)
  • Table des matières complète
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Commentaires client les plus utiles

Format: Broché Achat vérifié
Really Sandi Metz is one of the best author to explain OO Concepts.
This book is my most valuable book on my shelve and I love to read it again and again.
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Commentaires client les plus utiles sur Amazon.com (beta)

Amazon.com: 138 commentaires
42 internautes sur 44 ont trouvé ce commentaire utile 
Superb content, excellent delivery. 11 septembre 2012
Par Amazon Customer - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
This is my favorite tech read so far this year. It takes a straight-forward approach to writing code that you won't hate yourself for a day or month or year later.

The term "design" in the title is not referring to making wild speculative guesses about the future and planning for any number of contingencies, it is about arranging the code so that it is understandable, and to minimize cost and pain.

There is a focus on designing the communication between objects as much as focusing on the structure of the objects themselves, which I found to be extremely interesting. This discussion helped clarify a lot of thoughts and ideas about abstractions and where responsibilities belong, as well as the directions of dependencies -- things that had been rattling around in my brain for a while but that I had trouble applying in the real world. Reading this let me put all these pieces together (and then some) into a coherent whole. Or at least a coherent seed of a whole.

The code examples are simple, but the author manages to wrangle some serious dramatic tension out of every line of code, and they illustrate the concepts covered well enough that I was able to make the leap to applying the concepts in much more complex code bases.

The chapter on testing was sublime. It took an immensely practical approach to which methods to test and which tests to write in order to avoid duplication and brittleness in both tests and designs.

I also appreciated that none of the discussions were about any sort of moral superiority. The discussions were about getting things done. The argument for arranging code nicely wasn't about aesthetics or professional duty, but rather about lowering cost and allowing you to make changes without causing expensive outages and making people frustrated.

Soap boxes? Sure. High horses? Nowhere in sight.

Note: I read a pre-release version of the book. I did not know the author at the time, but sent her quite a lot of feedback, which led to several conversations to clarify. When I waxed enthusiastic about the contents, she asked if she could forward this to the publisher, and a quote ended up in the paper copy.
17 internautes sur 18 ont trouvé ce commentaire utile 
Practical Object Oriented Design is Excellent 12 septembre 2012
Par Joel Hooks - Publié sur Amazon.com
Format: Broché
I have been absolutely enjoying every page. It isn't very often that a technical book comes along that really strikes me as a "new classic," but this one qualifies. Sandi Metz has compiled a concise review of SOLID design principles in clear approachable language.

Don't be put off by the "in Ruby" portion of the title. If you can read code and understand the basics of design patterns, this book shouldn't pose any technical hurdles regarding the language the author uses.

One of my favorite features of this book was the way she guides us through the anti-patterns that we typically see in our code. We then step through a series of refactorings before arriving at a simple, maintainable, nicely packaged object-oriented design.

After we've been well schooled in fundamentals, we are given an excellent exposition of unit testing. The unit testing chapter is worth the cost of admission alone.

This is where we want to go after grasping design patterns. It is earning a well deserved spot next to Growing Object-Oriented Software, Guided by Tests in my top ten list.
17 internautes sur 19 ont trouvé ce commentaire utile 
Delightful, important, must-read for intermediate OO devs 9 novembre 2012
Par Brandon M Hays - Publié sur Amazon.com
Format: Broché Achat vérifié
In short, this is in my top five programming books I've ever read. Please do not hesitate, do everyone that works with your code (especially yourself) a favor and read it.

I believe that in 20 years, this will be considered one of the definitive works on Object-Oriented Programming. The author provides a smooth on-ramp from basic OO programming principles, and builds on it until you're able to understand the kinds of lessons that normally only come from decades of day-in, day-out experience working in OO code.

What's unusual about this book?

- It reads your mind.
The author takes enormous care to empathize with the reader. Many times, you'll find yourself reading and thinking something, only to read "you're probably thinking at this point..." with your exact thought or concern.

- The author is okay with sounding like a human being.
The author's colloquial style peeks through over and over again. I kept getting caught off guard by delightful little turns of phrase that one does not see often in programming books.

- The lessons are grounded in reality.
Since Ms. Metz keeps the examples surprisingly close to production code (though a somewhat simplified version), you don't have to reach very far to figure out how you'd apply these lessons. Examples aren't contrived to prove a point, they are real-life situations that demand a solution, which always seems to be presented at just the right time. While reading, you'll find yourself exclaiming when she pinpoints the exact source of pain that you run into frequently.

- Sections end, rather than begin, with a principle.
This is the first book about Object-Oriented design I've read that doesn't clobber you over the head with jargon or come in with a top-down approach. Most technical books start with an assertion, pattern, or hypothesis, then spend the rest of the book explaining and trying to convince you. Ms. Metz takes the longer, more difficult approach of organically working through a typical Object-Oriented application, growing it, feeling pain, and addressing that pain. Along the way, she points out where these pain points are addressed, and only then does she explain that there is a name for the solution,

- It is immediately beneficial.
For my part, I couldn't wait to go back and apply all the lessons I learned to code that I'd written that I wasn't happy with and couldn't figure out why. I've used the lessons from this book to help guide my intuition about the kind of code that lends itself to long-term maintainability.

- It contains no religious zealotry.
There's no preachiness: it's all about strategies, tactics, and tradeoffs a software developer employs to reach a desired goal. It also has the most concise and articulate overview of testing styles I've ever seen. Many programming books lose the forest for the trees, focusing on a pattern, principle, tool, or technique, touting it as *the* solution to all your programming problems. Ms. Metz never falls into that trap, and keeps the focus on writing code that can meet the changing needs of users for years to come.

- It is timeless.
Rather than a trendy new topic, this book could find itself applicable 25 years ago or 25 years from now. I believe it'll be regarded as a landmark volume on the topic of OO design, along with books like Kent Beck's Smalltalk Best Practice Patterns. It's obvious that lots of care, attention, and refinement went into this book, and the reader benefits greatly. I'm grateful to Sandy for writing this book, I plan to re-read it at least once a year to keep my OO skills from falling into atrophy.

I wish I could provide some negative feedback to balance the review, but I simply don't have any. If you're a relatively new, intermediate, or even somewhat advanced OO developer in any langauge, purchasing this book is the best way I know to level up your Object-Oriented design skills.
7 internautes sur 8 ont trouvé ce commentaire utile 
Should 16 juin 2013
Par ajcb - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
This book is essential reading for any programmer of an object-oriented language, not just Rubyists. Most everything imparted is platform-independent, and just as applicable in Java, C# or C++. Metz makes a good case for Agile development's close relationship to principles of good design. She draws attention in her field, and this book is a rationale of design. You can find other presentations she has made on the web about testing and programming.

I gave this 4/5 stars because the ideas she promotes are important to grasp if you want to be a good programmer. Matt Dillon said a good programmer is someone who writes good programs. But what are good programs? This book provides an answer for that, and it's a deep subject. Metz navigates it well, with clear examples illustrating with Ruby code.

I must warn you this becomes quite abstract towards the end, and you can suffer technical fatigue before getting there. It's a long book that requires some discipline to read cover to cover.
4 internautes sur 4 ont trouvé ce commentaire utile 
Ah Hah! 8 novembre 2012
Par pdm - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
This was a very readable book and full of "ah hah" moments for me. I've been doing OO programming for a while in other languages and never really figured out the real best practices for designing my code. This book clearly explained a good approach to OO design and ways to make your code more manageable in the future. It was an enjoyable read where the examples weren't contrived and really helped to show the concepts clearly.

This book caused a fundamental change in how I approach my software design. I thought highly enough of it that I purchased a copy for my team to read.

I will say that reading this book on the Paperwhite Kindle was some what of a challenge due to formatting and colors in the code examples. Some text in code listings was so faint it was nearly impossible to read. On color display the text is colored, so it is the grey-scale conversion that seems to cause the problem.
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