Patterns of Enterprise Application Architecture
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- Create Date：2021-07-20 09:54:21
- Update Date：2025-09-07
- Status：finish
- Author：Martin Fowler
- ISBN：0321127420
- Environment：PC/Android/iPhone/iPad/Kindle
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Summary
The practice of enterprise application development has benefited from the emergence of many new enabling technologies。 Multi-tiered object-oriented platforms， such as Java and 。NET， have become commonplace。 These new tools and technologies are capable of building powerful applications， but they are not easily implemented。 Common failures in enterprise applications often occur because their developers do not understand the architectural lessons that experienced object developers have learned。
Patterns of Enterprise Application Architecture
is written in direct response to the stiff challenges that face enterprise application developers。 The author， noted object-oriented designer Martin Fowler， noticed that despite changes in technology--from Smalltalk to CORBA to Java to 。NET--the same basic design ideas can be adapted and applied to solve common problems。 With the help of an expert group of contributors， Martin distills over forty recurring solutions into patterns。 The result is an indispensable handbook of solutions that are applicable to any enterprise application platform。 This book is actually two books in one。 The first section is a short tutorial on developing enterprise applications， which you can read from start to finish to understand the scope of the book's lessons。 The next section， the bulk of the book， is a detailed reference to the patterns themselves。 Each pattern provides usage and implementation information， as well as detailed code examples in Java or C#。 The entire book is also richly illustrated with UML diagrams to further explain the concepts。 Armed with this book， you will have the knowledge necessary to make important architectural decisions about building an enterprise application and the proven patterns for use when building them。 The topics covered include - Dividing an enterprise application into layers - The major approaches to organizing business logic - An in-depth treatment of mapping between objects and relational databases - Using Model-View-Controller to organize a Web presentation - Handling concurrency for data that spans multiple transactions - Designing distributed object interfaces
Reviews
Tharun
，
Non linear narration is very annoying。
Akhil Ghatiki
，
i felt this book would be useful to anyone who works on decades old tech stack。 Lot of wrapping and frameworks came up and we hardly use the patterns mentioned in this book in the current implementations。
Avraam Mavridis
，
Definitely a great book but on some parts it is clear that it is a bit "too old"。 The book is almost 20 years old， so it is not a surprise that some of the patterns Martin describes there are not so "real" nowdays， for example I cant imagine any service that is written the last 6-7years to make use of the Remote Facade pattern。 Another thing that shows the age of the book is the use of XML as the main way of transporting data， again， I think JSON （and Protobuffers） have won this battle。 Patterns Definitely a great book but on some parts it is clear that it is a bit "too old"。 The book is almost 20 years old， so it is not a surprise that some of the patterns Martin describes there are not so "real" nowdays， for example I cant imagine any service that is written the last 6-7years to make use of the Remote Facade pattern。 Another thing that shows the age of the book is the use of XML as the main way of transporting data， again， I think JSON （and Protobuffers） have won this battle。 Patterns like Data Transfer Object nowdays that GraphQL becomes more and more popular seem like a joke。If you take into consideration that is a 20 years old book， its a great one， but probably is time for Martin to revisit and release a new edition。 。。。more
Christopher Warner
，
Excellent information on when to consider patterns and the trade offs of each。 Too abstract in parts， where common techniques are given overly simplistic names and descriptions， but generally good
Felipe Gonçalves Marques
，
A very good book in terms of listing problems/challenges and possible ways to solve them。 I found the one regarding Session State Management， Concurrency Control Patterns （Optimistic Lock， Pessimistic Lock and Coarse Lock）， and "Frontend" patterns were very insightful。But， as expected from a book published in 2006， it focuses a lot in OO and Relational databases。 But， some ideas are very useful outside of those domains。 A very good book in terms of listing problems/challenges and possible ways to solve them。 I found the one regarding Session State Management， Concurrency Control Patterns （Optimistic Lock， Pessimistic Lock and Coarse Lock）， and "Frontend" patterns were very insightful。But， as expected from a book published in 2006， it focuses a lot in OO and Relational databases。 But， some ideas are very useful outside of those domains。 。。。more
Hamid Sanjari
，
Platform based composable applications are the future of Enterprise Applications。 The creation of building blocks （digital components） and platforms that can be used and repurposed by departments and other jurisdictions to build modern， reliable digital services will produce better， more consistent experiences for the public。。。。End to End Visibility is a key enabler to Enterprise Application Modernization。
Reinis Bekeris
，
Good set of strategies and patterns for separating a large project codebase。 I did not enjoy the fact that the explanations were quite dragged out and quite often just re-states what was already written before without adding more reasoning。
Dmitrii Kliuev
，
obsolete today。
Ivan Kovic
，
A bit of content is outdated， but it's a great read nonetheless。 We're still facing the same issues， although now there are commonly available solutions。 A bit of content is outdated， but it's a great read nonetheless。 We're still facing the same issues， although now there are commonly available solutions。 。。。more
Stefan Papp
，
Great reference for a lot of design solutions more companies should consider *before* implementation and even more should consult during the build of complex software。I've only used it to look-up three or four patterns and the ease with which I could find them based on the problem domain as well as alternatives given put a smile on my face。 Very good book to have in any serious high-level programming workplace。 Great reference for a lot of design solutions more companies should consider *before* implementation and even more should consult during the build of complex software。I've only used it to look-up three or four patterns and the ease with which I could find them based on the problem domain as well as alternatives given put a smile on my face。 Very good book to have in any serious high-level programming workplace。 。。。more
Sebastian Melgin
，
The most comprehensive book about middleware I ever read！
Paolo Bizzarri
，
Still relevant to read
Denis
，
Very good book， it provides a lot of patterns and knowledge about some techniques that you may never implement by yourself， nonetheless this is helpful when using libraries。
George Hipp
，
Good historical reference book for the shelf！ I can't believe it is 18 years old！ Not for everyone and there are newer books with modern terms， but many of the concepts still apply。 Good historical reference book for the shelf！ I can't believe it is 18 years old！ Not for everyone and there are newer books with modern terms， but many of the concepts still apply。 。。。more
Leshy
，
generally a practical guide to incorporating design patterns to deal with the shits you work on every day。
Daniel Schulte
，
I love patterns books， and I was particularly happy to hear that Martin Fowler uses the Gateway pattern （don't trust your dependencies！）。 This book hadn't aged particularly well， but most of the concepts still hold up today。 I love patterns books， and I was particularly happy to hear that Martin Fowler uses the Gateway pattern （don't trust your dependencies！）。 This book hadn't aged particularly well， but most of the concepts still hold up today。 。。。more
Rajput
，
When I started reading this book ， I want to learn about Design Patterns as I am a beginner。 I think this book is for those who already have an understanding of patterns。 I am going to read other books for a quick start in Design Pattern Basics。
Vladislav
，
Рекомендую только самым начинающим。 Любой， кто хоть пару лет в корпоративной разработке не подчеркнет оттуда особо ничего нового。 Плюс написана очень странным языком и тяжело читается。
Vlad Limbean
，
Relevant and well structured， but in dire need of an editor。
Danial Kalbasi
，
A classic book with still relevant content。 I was read the negative comments and as I personally have this book for quite a long time on my list， I still decided to read it。 Generally， classic books talk about fundamentals and abstract contents， it's not a cup of coffee for everyone， because they can fast become boring。 It also hard to relate sometimes。 Using some of the contents directly without prior research and enhancing the idea is absolutely not brings you much benefit IMO。 That's why if a A classic book with still relevant content。 I was read the negative comments and as I personally have this book for quite a long time on my list， I still decided to read it。 Generally， classic books talk about fundamentals and abstract contents， it's not a cup of coffee for everyone， because they can fast become boring。 It also hard to relate sometimes。 Using some of the contents directly without prior research and enhancing the idea is absolutely not brings you much benefit IMO。 That's why if a reader doesn't set a right expectation from the start， he would get disappointed。 Of course， the book has issues and it didn't really discuss more interesting techniques such as DI and how it fits with other patterns， but still， it's forgivable， it's written almost 18 years ago。 To conclude， I believe the first half of the "Patterns" section is interesting as it's discussed design techniques in ORMs （Very abstract， more for people actually want to design ORM or try to understand it's underlying patterns） and other architecture design patterns。 Also， the book would be much helpful if you have a good background in OO design。 。。。more
Sumant
，
I tried reading this book， but should have read previous reviews before starting this book。 The book is clearly outdated in terms of lots of concepts and patterns in it。 Also the language is not fluid， and I really got bored reading the few pages I read from this book。Stopped reading the book， as I did not want to spend my time learning and understanding something in a harder way。
Anbarasan Samandan
，
Must read for architects。
Richard Fabian
，
Lots of advice of a practical nature。 Less theory than many other patterns books。 The advice is from long enough ago that in many cases， only the core values behind the advice are pertinent。 But as long as you can see through to the reasoning， you can get a lot out of Martin Fowler's words。 His style is rather laid back and self deprecating， which works， and reminds you that everyone was playing by ear in those days， and maybe we all still are now。I did not thoroughly read all the patterns， they Lots of advice of a practical nature。 Less theory than many other patterns books。 The advice is from long enough ago that in many cases， only the core values behind the advice are pertinent。 But as long as you can see through to the reasoning， you can get a lot out of Martin Fowler's words。 His style is rather laid back and self deprecating， which works， and reminds you that everyone was playing by ear in those days， and maybe we all still are now。I did not thoroughly read all the patterns， they are reference after all， but felt the first section， the narratives， was well worth my time。 I think this book could do with an update to show patterns including the rise of NOSQL and how the Web has developed since。 。。。more
Trung
，
A good book that was terribly written。 The first half assumes you have read the second half first。 The second half introduces too many concepts （and names） but they only revolve around similar concerns in software engineering， resulting in vocabulary overload on otherwise not very deep technical problems。
Esakki
，
good book。 must read。
Engin
，
this book was written in 2003， hibernate， spring was fairly new at that time and still not widely used。 this book solves many problems of that era， after adoptation of ORM tools and dependency injection frameworks most of the information which are in the book obsolete。 still gives a good insight about how things were evolve and why we have these tools today。 still some topics are relevant but i recommended less while time passed。
Rory Armstrong
，
Some of it felt not as relevant today as when it was written but a lot of the patterns are still great such as the Unit Of Work， Domain Object， and Optimistic/Pessimistic Locking patterns。There's probably other technical books I'd read before this （Clean Code， Working Effectively with Legacy Code， Effective 'Insert lanuage here' etc） but for moving more into the architecture side of things this is a good one。 Some of it felt not as relevant today as when it was written but a lot of the patterns are still great such as the Unit Of Work， Domain Object， and Optimistic/Pessimistic Locking patterns。There's probably other technical books I'd read before this （Clean Code， Working Effectively with Legacy Code， Effective 'Insert lanuage here' etc） but for moving more into the architecture side of things this is a good one。 。。。more
Andrew
，
Книга попала в ToDo список еще очень-очень давно по рекомендации старших товарищей。 Мол， это эссенция опыта зубра индустрии， так проектируют взрослые дядьки во взрослых проектах。 Соответственно ожидания были очень высокие。 Казалось， после приобщения к этому источнику мудрости， я наконец узнаю как все делать правильно。 Если коротко， мои ожидания частично оправдались。Маленькая ремарка - это отзыв веб-разработчика с 10-м опытом на Ruby/Ruby on Rails о книге от и для （не будем кривить душей） Java ра Книга попала в ToDo список еще очень-очень давно по рекомендации старших товарищей。 Мол， это эссенция опыта зубра индустрии， так проектируют взрослые дядьки во взрослых проектах。 Соответственно ожидания были очень высокие。 Казалось， после приобщения к этому источнику мудрости， я наконец узнаю как все делать правильно。 Если коротко， мои ожидания частично оправдались。Маленькая ремарка - это отзыв веб-разработчика с 10-м опытом на Ruby/Ruby on Rails о книге от и для （не будем кривить душей） Java разработчика。Начнем с позитивных моментов。Это достаточно большой справочник шаблонов。 Часть из них мне была знакома только по названию， а часть - совсем незнакома。 Описание и примеры дали достаточно точное представление о них。 К примеру шаблон Data Mapper практически не используется в экосистеме Ruby， а Unit of Work оказался для меня открытием。 Коллеги из соседнего проекта на 。Net подтвердили， что последний вполне актуален и используется в их мире。Имея перед глазами такую подробную/детальную/исчерпывающую классификацию подходов， некоторые вполне очевидные понятия стали на свои места， устаканилась в голове терминология。 Например， встал на свое место паттерн ActiveRecord。 Понравилось ясное и простое определение автора паттерна Value Object （aka POJO или PORO）。Злободневный вопрос как правильно готовить Service Layer затронул хотя и не раскрыл полностью， так как похоже мало использовался автором。 Несмотря на это приведенные краткие примеры и компромиссы могут быть полезны。Теперь к негативу。Еще одна маленькая ремарка。 Индекс в конце книги очень полезен。 К сожалению я выяснил это в самом конце и потратил лишнее время и нервы в одиночку。 Можно поставить автору это в укор。 В самом начале предисловия можно было написать - используй индекс， он твой лучший друг。В процессе чтения часто возникает вопрос WTF？。 В некоторых статьях - на каждом абзаце。 Какие вопросы часто возникают？Предлагаемый подход к чтению。 Автор предлагает читать первую часть （обзорную， с общими рассуждениями и сравнениями） в начале целиком и вторую （со списком самих шаблонов） уже не по порядку。 При этом возникает вопрос， как можно читать первую часть， в которой обсуждают и сравнивают шаблоны из второй части， без знакомства с этими шаблонами и чтением второй части целиком？ Когда читаешь сами шаблоны， часто встречаются перекрестные ссылки на соседние。 Более того， используется терминология， определенная в первой части。 Окей， без этого никак。 Но часто применяются неочевидные/неоднозначные термины， которые нужно искать в индексе в конце книги… Что в общем вызывало много раздражение。Структурирование подразделов。 В отличи о GoF с сжатой и компактной структурой и статьями （название - описание проблемы - краткое описание решения - пример - более детальное описание） здесь автор приводит краткое описание одним предложение - картинка - пространные рассуждения - пространный подраздел “Как это работает” - затем идет пространный подраздел “Когда это использовать”， тоже часто полный воды， и затем пространный листинг （или даже два）。 Листинги часто большого размера， многословные и были мало полезны。 Пробираться через многословный Java код привыкнув к лаконичному динамическому Ruby не то чтобы сложно， нет， но глаз замыливаетя и бывает сложно увидеть общую картину， иллюстрацию паттерна， за кучей строк вспомогательного кода。Терминология автора。 Она явно устарела лет на 20。 Часто используется не общеупотребимые， а весьма специфичные， возможно используемые во время и среде знакомой автору。 Книга претендует на универсальность и отвязанность от конкретного стека。 Но иногда в _общем_ описании проскальзывают специфика конкретного стека （например Java）。 Это сильно бросается в глаза。 Примеры таких терминов: container-managed transactions， thread instance， package…Изменение масштаба。 Рассуждения об архитектуре приложения может внезапно прерываться деталями реализации， переходом на уровень классов и методов… В том же параграфе или подразделе。Некоторые размышления и советы автора опираются на его личный опыт и кажутся не очень верными/применимыми для архитектуры бОльших приложений （пример - How to use в разделе о Service Layer）。Первая часть - практически бесполезна и дублирует вторую часть。 Начав читать первую часть и столкнувшись с постоянными отсылками к конкретным шаблонам， пришлось переключиться на вторую - на сами паттерны。 Вернувшись затем к первой， внезапно обнаружил， что автор повторяет себя из второй главы - другими словами， более кратко… Но нового материала по сравнению со второй главой практически нет。 Возникло впечатление， будто это автору гонорар зависел от количества страниц。В целом впечатление неоднозначное。 Полезную информацию для себя я нашел， но вот накладные расходы времени и нервов непропорционально большие。В книге много воды и деталей реализации， запутанная/непривычная/нестандартная терминология。 Возможно мое восприятие искажено спецификой работы с динамическим Ruby и разработчику на Java все зашло бы проще… Возможно книгу можно осовременить адаптировав терминологию и ужать в размерах。 Тогда она будет стоить потраченного времени。 。。。more
Eric Perazzo
，
The book is quite old （2002） but it's still relevant。 I read the first part carefully and then took a quick look at the second part， where Fowler catalogs the patterns。It's important when to use them， but the second part should be used as a reference whenever we feel some of them should be applied。It's worth noting that most of the modern frameworks make use of some of the patterns described by the book （e。g。， Symfony/Doctrine: Unit of Work， Domain Models with Data Mapper， Query Object， Front Co The book is quite old （2002） but it's still relevant。 I read the first part carefully and then took a quick look at the second part， where Fowler catalogs the patterns。It's important when to use them， but the second part should be used as a reference whenever we feel some of them should be applied。It's worth noting that most of the modern frameworks make use of some of the patterns described by the book （e。g。， Symfony/Doctrine: Unit of Work， Domain Models with Data Mapper， Query Object， Front Controller and many more）。 。。。more
Eduards Sizovs
，