Clean Architecture

Clean Architecture

Author: Robert C. Martin

Publisher: Prentice Hall

Published: 2017-09-12

Total Pages: 651

ISBN-13: 0134494326

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Practical Software Architecture Solutions from the Legendary Robert C. Martin (“Uncle Bob”) By applying universal rules of software architecture, you can dramatically improve developer productivity throughout the life of any software system. Now, building upon the success of his best-selling books Clean Code and The Clean Coder, legendary software craftsman Robert C. Martin (“Uncle Bob”) reveals those rules and helps you apply them. Martin’s Clean Architecture doesn’t merely present options. Drawing on over a half-century of experience in software environments of every imaginable type, Martin tells you what choices to make and why they are critical to your success. As you’ve come to expect from Uncle Bob, this book is packed with direct, no-nonsense solutions for the real challenges you’ll face–the ones that will make or break your projects. Learn what software architects need to achieve–and core disciplines and practices for achieving it Master essential software design principles for addressing function, component separation, and data management See how programming paradigms impose discipline by restricting what developers can do Understand what’s critically important and what’s merely a “detail” Implement optimal, high-level structures for web, database, thick-client, console, and embedded applications Define appropriate boundaries and layers, and organize components and services See why designs and architectures go wrong, and how to prevent (or fix) these failures Clean Architecture is essential reading for every current or aspiring software architect, systems analyst, system designer, and software manager–and for every programmer who must execute someone else’s designs. Register your product for convenient access to downloads, updates, and/or corrections as they become available.


Book Synopsis Clean Architecture by : Robert C. Martin

Download or read book Clean Architecture written by Robert C. Martin and published by Prentice Hall. This book was released on 2017-09-12 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Software Architecture Solutions from the Legendary Robert C. Martin (“Uncle Bob”) By applying universal rules of software architecture, you can dramatically improve developer productivity throughout the life of any software system. Now, building upon the success of his best-selling books Clean Code and The Clean Coder, legendary software craftsman Robert C. Martin (“Uncle Bob”) reveals those rules and helps you apply them. Martin’s Clean Architecture doesn’t merely present options. Drawing on over a half-century of experience in software environments of every imaginable type, Martin tells you what choices to make and why they are critical to your success. As you’ve come to expect from Uncle Bob, this book is packed with direct, no-nonsense solutions for the real challenges you’ll face–the ones that will make or break your projects. Learn what software architects need to achieve–and core disciplines and practices for achieving it Master essential software design principles for addressing function, component separation, and data management See how programming paradigms impose discipline by restricting what developers can do Understand what’s critically important and what’s merely a “detail” Implement optimal, high-level structures for web, database, thick-client, console, and embedded applications Define appropriate boundaries and layers, and organize components and services See why designs and architectures go wrong, and how to prevent (or fix) these failures Clean Architecture is essential reading for every current or aspiring software architect, systems analyst, system designer, and software manager–and for every programmer who must execute someone else’s designs. Register your product for convenient access to downloads, updates, and/or corrections as they become available.


Clean Code

Clean Code

Author: Robert C. Martin

Publisher: Pearson Education

Published: 2009

Total Pages: 464

ISBN-13: 0132350882

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Looks at the principles and clean code, includes case studies showcasing the practices of writing clean code, and contains a list of heuristics and "smells" accumulated from the process of writing clean code.


Book Synopsis Clean Code by : Robert C. Martin

Download or read book Clean Code written by Robert C. Martin and published by Pearson Education. This book was released on 2009 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Looks at the principles and clean code, includes case studies showcasing the practices of writing clean code, and contains a list of heuristics and "smells" accumulated from the process of writing clean code.


Get Your Hands Dirty on Clean Architecture

Get Your Hands Dirty on Clean Architecture

Author: Tom Hombergs

Publisher: Packt Publishing Ltd

Published: 2019-09-30

Total Pages: 157

ISBN-13: 1839212713

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Gain insight into how hexagonal architecture can help to keep the cost of development low over the complete lifetime of an application Key FeaturesExplore ways to make your software flexible, extensible, and adaptableLearn new concepts that you can easily blend with your own software development styleDevelop the mindset of building maintainable solutions instead of taking shortcutsBook Description We would all like to build software architecture that yields adaptable and flexible software with low development costs. But, unreasonable deadlines and shortcuts make it very hard to create such an architecture. Get Your Hands Dirty on Clean Architecture starts with a discussion about the conventional layered architecture style and its disadvantages. It also talks about the advantages of the domain-centric architecture styles of Robert C. Martin's Clean Architecture and Alistair Cockburn's Hexagonal Architecture. Then, the book dives into hands-on chapters that show you how to manifest a hexagonal architecture in actual code. You'll learn in detail about different mapping strategies between the layers of a hexagonal architecture and see how to assemble the architecture elements into an application. The later chapters demonstrate how to enforce architecture boundaries. You'll also learn what shortcuts produce what types of technical debt and how, sometimes, it is a good idea to willingly take on those debts. After reading this book, you'll have all the knowledge you need to create applications using the hexagonal architecture style of web development. What you will learnIdentify potential shortcomings of using a layered architectureApply methods to enforce architecture boundariesFind out how potential shortcuts can affect the software architectureProduce arguments for when to use which style of architectureStructure your code according to the architectureApply various types of tests that will cover each element of the architectureWho this book is for This book is for you if you care about the architecture of the software you are building. To get the most out of this book, you must have some experience with web development. The code examples in this book are in Java. If you are not a Java programmer but can read object-oriented code in other languages, you will be fine. In the few places where Java or framework specifics are needed, they are thoroughly explained.


Book Synopsis Get Your Hands Dirty on Clean Architecture by : Tom Hombergs

Download or read book Get Your Hands Dirty on Clean Architecture written by Tom Hombergs and published by Packt Publishing Ltd. This book was released on 2019-09-30 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gain insight into how hexagonal architecture can help to keep the cost of development low over the complete lifetime of an application Key FeaturesExplore ways to make your software flexible, extensible, and adaptableLearn new concepts that you can easily blend with your own software development styleDevelop the mindset of building maintainable solutions instead of taking shortcutsBook Description We would all like to build software architecture that yields adaptable and flexible software with low development costs. But, unreasonable deadlines and shortcuts make it very hard to create such an architecture. Get Your Hands Dirty on Clean Architecture starts with a discussion about the conventional layered architecture style and its disadvantages. It also talks about the advantages of the domain-centric architecture styles of Robert C. Martin's Clean Architecture and Alistair Cockburn's Hexagonal Architecture. Then, the book dives into hands-on chapters that show you how to manifest a hexagonal architecture in actual code. You'll learn in detail about different mapping strategies between the layers of a hexagonal architecture and see how to assemble the architecture elements into an application. The later chapters demonstrate how to enforce architecture boundaries. You'll also learn what shortcuts produce what types of technical debt and how, sometimes, it is a good idea to willingly take on those debts. After reading this book, you'll have all the knowledge you need to create applications using the hexagonal architecture style of web development. What you will learnIdentify potential shortcomings of using a layered architectureApply methods to enforce architecture boundariesFind out how potential shortcuts can affect the software architectureProduce arguments for when to use which style of architectureStructure your code according to the architectureApply various types of tests that will cover each element of the architectureWho this book is for This book is for you if you care about the architecture of the software you are building. To get the most out of this book, you must have some experience with web development. The code examples in this book are in Java. If you are not a Java programmer but can read object-oriented code in other languages, you will be fine. In the few places where Java or framework specifics are needed, they are thoroughly explained.


The Clean Coder

The Clean Coder

Author: Robert C. Martin

Publisher: Pearson Education

Published: 2011

Total Pages: 247

ISBN-13: 0137081073

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Presents practical advice on the disciplines, techniques, tools, and practices of computer programming and how to approach software development with a sense of pride, honor, and self-respect.


Book Synopsis The Clean Coder by : Robert C. Martin

Download or read book The Clean Coder written by Robert C. Martin and published by Pearson Education. This book was released on 2011 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents practical advice on the disciplines, techniques, tools, and practices of computer programming and how to approach software development with a sense of pride, honor, and self-respect.


CLEAN ARCHITECTURE

CLEAN ARCHITECTURE

Author: William Vance

Publisher:

Published: 2020-06-09

Total Pages: 482

ISBN-13: 9781913597511

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The Complete 3 Book Series on Clean Architecture Book 1 This book is a step-by-step guide to learn the basic skills of designing software structure and not only learning the theoretical aspects, but there are also examples in the book that will help you understand software structures. A Comprehensive Beginners Guide to Learn the Realms of Software Structures Using the Principles of Clean Architecture emphasizes how to develop software with independent architecture. This book is the perfect guide for every knowledge seeker. The goal of this book is to teach people to implement the craft of how to design software structures with Clean Architecture. Book 2 You are probably reading this book for two reasons: you are either a programmer or you are seeking to be a better programmer. If these two describe you, then you have chosen the right book. This book will give you all the necessary tips and tricks to software and programming using the clean code approach called Clean Architecture. This book is not only about functional programs, but it also gives you tips and tricks to proper programming methodologies. Book 3 Software architecture refers to the design and implementation of high-level software structures. It is the result of implementing a number of architectural elements that meet the highest functional and operational requirements of the system, as well as non-functional requirements such as scalability, reliability, availability and portability. This offers you advanced strategies in the world of application programming based on clean architecture, especially relevant when complex projects must be developed. Throughout the book, the advanced concepts related to clean software architectures are explained. The strategy applied is to understand the characteristics of the most relevant structures in the market today.


Book Synopsis CLEAN ARCHITECTURE by : William Vance

Download or read book CLEAN ARCHITECTURE written by William Vance and published by . This book was released on 2020-06-09 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Complete 3 Book Series on Clean Architecture Book 1 This book is a step-by-step guide to learn the basic skills of designing software structure and not only learning the theoretical aspects, but there are also examples in the book that will help you understand software structures. A Comprehensive Beginners Guide to Learn the Realms of Software Structures Using the Principles of Clean Architecture emphasizes how to develop software with independent architecture. This book is the perfect guide for every knowledge seeker. The goal of this book is to teach people to implement the craft of how to design software structures with Clean Architecture. Book 2 You are probably reading this book for two reasons: you are either a programmer or you are seeking to be a better programmer. If these two describe you, then you have chosen the right book. This book will give you all the necessary tips and tricks to software and programming using the clean code approach called Clean Architecture. This book is not only about functional programs, but it also gives you tips and tricks to proper programming methodologies. Book 3 Software architecture refers to the design and implementation of high-level software structures. It is the result of implementing a number of architectural elements that meet the highest functional and operational requirements of the system, as well as non-functional requirements such as scalability, reliability, availability and portability. This offers you advanced strategies in the world of application programming based on clean architecture, especially relevant when complex projects must be developed. Throughout the book, the advanced concepts related to clean software architectures are explained. The strategy applied is to understand the characteristics of the most relevant structures in the market today.


Programming WCF Services

Programming WCF Services

Author: Juval Lowy

Publisher: "O'Reilly Media, Inc."

Published: 2007-02-20

Total Pages: 637

ISBN-13: 0596554761

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Written by Microsoft software legend Juval Lowy, Programming WCF Services is the authoritative introduction to Microsoft's new, and some say revolutionary, unified platform for developing service-oriented applications (SOA) on Windows. Relentlessly practical, the book delivers insight, not documentation, to teach developers what they need to know to build the next generation of SOAs. After explaining the advantages of service-orientation for application design and teaching the basics of how to develop SOAs using WCF, the book shows how you can take advantage of built-in features such as service hosting, instance management, asynchronous calls, synchronization, reliability, transaction management, disconnected queued calls and security to build best in class applications. Programming WCF Services focuses on the rationale behind particular design decisions, often shedding light on poorly-documented and little-understood aspects of SOA development. Developers and architects will learn not only the "how" of WCF programming, but also relevant design guidelines, best practices, and pitfalls. Original techniques and utilities provided by the author throughout the book go well beyond anything that can be found in conventional sources. Based on experience and insight gained while taking part in the strategic design of WCF and working with the team that implemented it, Programming WCF Services provides experienced working professionals with the definitive work on WCF. Not only will this book make you a WCF expert, it will make you a better software engineer. It's the Rosetta Stone of WCF.


Book Synopsis Programming WCF Services by : Juval Lowy

Download or read book Programming WCF Services written by Juval Lowy and published by "O'Reilly Media, Inc.". This book was released on 2007-02-20 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by Microsoft software legend Juval Lowy, Programming WCF Services is the authoritative introduction to Microsoft's new, and some say revolutionary, unified platform for developing service-oriented applications (SOA) on Windows. Relentlessly practical, the book delivers insight, not documentation, to teach developers what they need to know to build the next generation of SOAs. After explaining the advantages of service-orientation for application design and teaching the basics of how to develop SOAs using WCF, the book shows how you can take advantage of built-in features such as service hosting, instance management, asynchronous calls, synchronization, reliability, transaction management, disconnected queued calls and security to build best in class applications. Programming WCF Services focuses on the rationale behind particular design decisions, often shedding light on poorly-documented and little-understood aspects of SOA development. Developers and architects will learn not only the "how" of WCF programming, but also relevant design guidelines, best practices, and pitfalls. Original techniques and utilities provided by the author throughout the book go well beyond anything that can be found in conventional sources. Based on experience and insight gained while taking part in the strategic design of WCF and working with the team that implemented it, Programming WCF Services provides experienced working professionals with the definitive work on WCF. Not only will this book make you a WCF expert, it will make you a better software engineer. It's the Rosetta Stone of WCF.


Expert Android Programming

Expert Android Programming

Author: Prajyot Mainkar

Publisher: Packt Publishing Ltd

Published: 2017-09-29

Total Pages: 397

ISBN-13: 1786463393

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Become a pro with the latest Android SDK and create state of the art applications for Android. About This Book Dive deep into Android development with practical hands on examples to help you in each stage. Develop smart professional grade apps for the latest Android N version and become a pro android developer. Unclog your development highway by utilising the industry standard best practices techniques. Who This Book Is For This book is for mobile developers having some expertise in building android apps and who wish to now take a leap into building complex app such as Zomato, using latest Android N power of Google. What You Will Learn Building UI/UX following best industry practices Development of Zomato Clone Measure and improve app performance Improving app using test mechanisms Bringing the app live on the play store In Detail Android O brings a number of important changes for the users as well as the developers. If you want to create smart android applications which are fast, lightweight and also highly efficient then this is the book that will solve all your problems. You will create a complex enterprise grade app in this book. You will get a quick refresher of the latest android SDK and how to configure your development environment. Then you will move onto creating app layouts, component and module building, creating smart and efficient UIs. The most important part of a modern day app is how real time they are. With this book, you will create a smooth back-end for your app, ensure dynamic and real time communication between different app layers. As we move on, you will learn to leverage the different Android APIs and create an efficient SQLite data layer for your apps. You will implement effective testing techniques to make your app reliable and robust and finally you will learn to deploy it efficiently. The multiple stages of android development will also be simplified by giving you an industry standard set of best practices. Style and approach This book will have a dedicated practical tutorial style approach with focus on professional & enterprise grade android app development. The examples in each chapter will be modular and will also help you to create a complete fully fueatured android app by the end of the book.


Book Synopsis Expert Android Programming by : Prajyot Mainkar

Download or read book Expert Android Programming written by Prajyot Mainkar and published by Packt Publishing Ltd. This book was released on 2017-09-29 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a pro with the latest Android SDK and create state of the art applications for Android. About This Book Dive deep into Android development with practical hands on examples to help you in each stage. Develop smart professional grade apps for the latest Android N version and become a pro android developer. Unclog your development highway by utilising the industry standard best practices techniques. Who This Book Is For This book is for mobile developers having some expertise in building android apps and who wish to now take a leap into building complex app such as Zomato, using latest Android N power of Google. What You Will Learn Building UI/UX following best industry practices Development of Zomato Clone Measure and improve app performance Improving app using test mechanisms Bringing the app live on the play store In Detail Android O brings a number of important changes for the users as well as the developers. If you want to create smart android applications which are fast, lightweight and also highly efficient then this is the book that will solve all your problems. You will create a complex enterprise grade app in this book. You will get a quick refresher of the latest android SDK and how to configure your development environment. Then you will move onto creating app layouts, component and module building, creating smart and efficient UIs. The most important part of a modern day app is how real time they are. With this book, you will create a smooth back-end for your app, ensure dynamic and real time communication between different app layers. As we move on, you will learn to leverage the different Android APIs and create an efficient SQLite data layer for your apps. You will implement effective testing techniques to make your app reliable and robust and finally you will learn to deploy it efficiently. The multiple stages of android development will also be simplified by giving you an industry standard set of best practices. Style and approach This book will have a dedicated practical tutorial style approach with focus on professional & enterprise grade android app development. The examples in each chapter will be modular and will also help you to create a complete fully fueatured android app by the end of the book.


Clean Agile

Clean Agile

Author: Robert C. Martin

Publisher: Prentice Hall

Published: 2019-09-12

Total Pages: 341

ISBN-13: 013578199X

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Agile Values and Principles for a New Generation “In the journey to all things Agile, Uncle Bob has been there, done that, and has the both the t-shirt and the scars to show for it. This delightful book is part history, part personal stories, and all wisdom. If you want to understand what Agile is and how it came to be, this is the book for you.” –Grady Booch “Bob’s frustration colors every sentence of Clean Agile, but it’s a justified frustration. What is in the world of Agile development is nothing compared to what could be. This book is Bob’s perspective on what to focus on to get to that ‘what could be.’ And he’s been there, so it’s worth listening.” –Kent Beck “It’s good to read Uncle Bob’s take on Agile. Whether just beginning, or a seasoned Agilista, you would do well to read this book. I agree with almost all of it. It’s just some of the parts make me realize my own shortcomings, dammit. It made me double-check our code coverage (85.09%).” –Jon Kern Nearly twenty years after the Agile Manifesto was first presented, the legendary Robert C. Martin (“Uncle Bob”) reintroduces Agile values and principles for a new generation–programmers and nonprogrammers alike. Martin, author of Clean Code and other highly influential software development guides, was there at Agile’s founding. Now, in Clean Agile: Back to Basics, he strips away misunderstandings and distractions that over the years have made it harder to use Agile than was originally intended. Martin describes what Agile is in no uncertain terms: a small discipline that helps small teams manage small projects . . . with huge implications because every big project is comprised of many small projects. Drawing on his fifty years’ experience with projects of every conceivable type, he shows how Agile can help you bring true professionalism to software development. Get back to the basics–what Agile is, was, and should always be Understand the origins, and proper practice, of SCRUM Master essential business-facing Agile practices, from small releases and acceptance tests to whole-team communication Explore Agile team members’ relationships with each other, and with their product Rediscover indispensable Agile technical practices: TDD, refactoring, simple design, and pair programming Understand the central roles values and craftsmanship play in your Agile team’s success If you want Agile’s true benefits, there are no shortcuts: You need to do Agile right. Clean Agile: Back to Basics will show you how, whether you’re a developer, tester, manager, project manager, or customer. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.


Book Synopsis Clean Agile by : Robert C. Martin

Download or read book Clean Agile written by Robert C. Martin and published by Prentice Hall. This book was released on 2019-09-12 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agile Values and Principles for a New Generation “In the journey to all things Agile, Uncle Bob has been there, done that, and has the both the t-shirt and the scars to show for it. This delightful book is part history, part personal stories, and all wisdom. If you want to understand what Agile is and how it came to be, this is the book for you.” –Grady Booch “Bob’s frustration colors every sentence of Clean Agile, but it’s a justified frustration. What is in the world of Agile development is nothing compared to what could be. This book is Bob’s perspective on what to focus on to get to that ‘what could be.’ And he’s been there, so it’s worth listening.” –Kent Beck “It’s good to read Uncle Bob’s take on Agile. Whether just beginning, or a seasoned Agilista, you would do well to read this book. I agree with almost all of it. It’s just some of the parts make me realize my own shortcomings, dammit. It made me double-check our code coverage (85.09%).” –Jon Kern Nearly twenty years after the Agile Manifesto was first presented, the legendary Robert C. Martin (“Uncle Bob”) reintroduces Agile values and principles for a new generation–programmers and nonprogrammers alike. Martin, author of Clean Code and other highly influential software development guides, was there at Agile’s founding. Now, in Clean Agile: Back to Basics, he strips away misunderstandings and distractions that over the years have made it harder to use Agile than was originally intended. Martin describes what Agile is in no uncertain terms: a small discipline that helps small teams manage small projects . . . with huge implications because every big project is comprised of many small projects. Drawing on his fifty years’ experience with projects of every conceivable type, he shows how Agile can help you bring true professionalism to software development. Get back to the basics–what Agile is, was, and should always be Understand the origins, and proper practice, of SCRUM Master essential business-facing Agile practices, from small releases and acceptance tests to whole-team communication Explore Agile team members’ relationships with each other, and with their product Rediscover indispensable Agile technical practices: TDD, refactoring, simple design, and pair programming Understand the central roles values and craftsmanship play in your Agile team’s success If you want Agile’s true benefits, there are no shortcuts: You need to do Agile right. Clean Agile: Back to Basics will show you how, whether you’re a developer, tester, manager, project manager, or customer. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.


A Philosophy of Software Design

A Philosophy of Software Design

Author: John Ousterhout

Publisher: Yaknyam Publishing

Published: 2018-04-10

Total Pages:

ISBN-13: 9781732102200

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Book Synopsis A Philosophy of Software Design by : John Ousterhout

Download or read book A Philosophy of Software Design written by John Ousterhout and published by Yaknyam Publishing. This book was released on 2018-04-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:


Functional Web Development with Elixir, OTP, and Phoenix

Functional Web Development with Elixir, OTP, and Phoenix

Author: Lance Halvorsen

Publisher: Pragmatic Bookshelf

Published: 2018-01-25

Total Pages: 298

ISBN-13: 1680505440

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Elixir and Phoenix are generating tremendous excitement as an unbeatable platform for building modern web applications. For decades OTP has helped developers create incredibly robust, scalable applications with unparalleled uptime. Make the most of them as you build a stateful web app with Elixir, OTP, and Phoenix. Model domain entities without an ORM or a database. Manage server state and keep your code clean with OTP Behaviours. Layer on a Phoenix web interface without coupling it to the business logic. Open doors to powerful new techniques that will get you thinking about web development in fundamentally new ways. Elixir and OTP provide exceptional tools to build rock-solid back-end applications that scale. In this book, you'll build a web application in a radically different way, with a back end that holds application state. You'll use persistent Phoenix Channel connections instead of HTTP's request-response, and create the full application in distinct, decoupled layers. In Part 1, start by building the business logic as a separate application, without Phoenix. Model the application domain with Elixir functions and simple data structures. By keeping state in memory instead of a database, you can reduce latency and simplify your code. In Part 2, add in the GenServer Behaviour to make managing in-memory state a breeze. Create a supervision tree to boost fault tolerance while separating error handling from business logic. Phoenix is a modern web framework you can layer on top of business logic while keeping the two completely decoupled. In Part 3, you'll do exactly that as you build a web interface with Phoenix. Bring in the application from Part 2 as a dependency to a new Phoenix project. Then use ultra-scalable Phoenix Channels to establish persistent connections between the stateful server and a stateful front-end client. You're going to love this way of building web apps! What You Need: You'll need a computer that can run Elixir version 1.5 or higher and Phoenix 1.3 or higher. Some familiarity with Elixir and Phoenix is recommended.


Book Synopsis Functional Web Development with Elixir, OTP, and Phoenix by : Lance Halvorsen

Download or read book Functional Web Development with Elixir, OTP, and Phoenix written by Lance Halvorsen and published by Pragmatic Bookshelf. This book was released on 2018-01-25 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elixir and Phoenix are generating tremendous excitement as an unbeatable platform for building modern web applications. For decades OTP has helped developers create incredibly robust, scalable applications with unparalleled uptime. Make the most of them as you build a stateful web app with Elixir, OTP, and Phoenix. Model domain entities without an ORM or a database. Manage server state and keep your code clean with OTP Behaviours. Layer on a Phoenix web interface without coupling it to the business logic. Open doors to powerful new techniques that will get you thinking about web development in fundamentally new ways. Elixir and OTP provide exceptional tools to build rock-solid back-end applications that scale. In this book, you'll build a web application in a radically different way, with a back end that holds application state. You'll use persistent Phoenix Channel connections instead of HTTP's request-response, and create the full application in distinct, decoupled layers. In Part 1, start by building the business logic as a separate application, without Phoenix. Model the application domain with Elixir functions and simple data structures. By keeping state in memory instead of a database, you can reduce latency and simplify your code. In Part 2, add in the GenServer Behaviour to make managing in-memory state a breeze. Create a supervision tree to boost fault tolerance while separating error handling from business logic. Phoenix is a modern web framework you can layer on top of business logic while keeping the two completely decoupled. In Part 3, you'll do exactly that as you build a web interface with Phoenix. Bring in the application from Part 2 as a dependency to a new Phoenix project. Then use ultra-scalable Phoenix Channels to establish persistent connections between the stateful server and a stateful front-end client. You're going to love this way of building web apps! What You Need: You'll need a computer that can run Elixir version 1.5 or higher and Phoenix 1.3 or higher. Some familiarity with Elixir and Phoenix is recommended.