Real World Implementation Of C Design Patterns

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Real-World Implementation of C# Design Patterns

Bruce M. Van Horn II,Van Symons
Real World Implementation of C Design Patterns Book PDF

Author : Bruce M. Van Horn II,Van Symons
Publisher : Packt Publishing Ltd
Page : 443 pages
File Size : 48,5 Mb
Release : 2022-10-14
Category : Computers
ISBN : 9781803247953

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Real-World Implementation of C# Design Patterns by Bruce M. Van Horn II,Van Symons Pdf

Build robust applications in C# easily using effective and popular design patterns and best practices Key FeaturesRecognize solutions to common problems in software design with C#Explore real-world applications of design patterns that can be used in your everyday workGet to grips with 14 patterns and their design implementationsBook Description As a software developer, you need to learn new languages and simultaneously get familiarized with the programming paradigms and methods of leveraging patterns, as both a communications tool and an advantage when designing well-written, easy-to-maintain code. Design patterns, being a collection of best practices, provide the necessary wisdom to help you overcome common sets of challenges in object-oriented design and programming. This practical guide to design patterns helps C# developers put their programming knowledge to work. The book takes a hands-on approach to introducing patterns and anti-patterns, elaborating on 14 patterns along with their real-world implementations. Throughout the book, you'll understand the implementation of each pattern, as well as find out how to successfully implement those patterns in C# code within the context of a real-world project. By the end of this design patterns book, you'll be able to recognize situations that tempt you to reinvent the wheel, and quickly avoid the time and cost associated with solving common and well-understood problems with battle-tested design patterns. What you will learnGet to grips with patterns, and discover how to conceive and document themExplore common patterns that may come up in your everyday workRecognize common anti-patterns early in the processUse creational patterns to create flexible and robust object structuresEnhance class designs with structural patternsSimplify object interaction and behavior with behavioral patternsWho this book is for This book is for beginner and mid-level software developers who are looking to take their object-oriented programs or software designing skills to the next level by learning to leverage common patterns. A firm grasp of programming fundamentals and classical object-oriented programming (OOP) using languages like C#, C++, Objective-C, or Java is expected.

Design Patterns in C#

Vaskaran Sarcar
Design Patterns in C Book PDF

Author : Vaskaran Sarcar
Publisher : Apress
Page : 465 pages
File Size : 46,7 Mb
Release : 2018-06-21
Category : Computers
ISBN : 9781484236406

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Design Patterns in C# by Vaskaran Sarcar Pdf

Get hands-on experience with each Gang of Four design pattern using C#. For each of the patterns, you’ll see at least one real-world scenario, a coding example, and a complete implementation including output. In the first part of Design Patterns in C#, you will cover the 23 Gang of Four (GoF) design patterns, before moving onto some alternative design patterns, including the Simple Factory Pattern, the Null Object Pattern, and the MVC Pattern. The final part winds up with a conclusion and criticisms of design patterns with chapters on anti-patterns and memory leaks. By working through easy-to-follow examples, you will understand the concepts in depth and have a collection of programs to port over to your own projects. Along the way, the author discusses the different creational, structural, and behavioral patterns and why such classifications are useful. In each of these chapters, there is a Q&A session that clears up any doubts and covers the pros and cons of each of these patterns.He finishes the book with FAQs that will help you consolidate your knowledge. This book presents the topic of design patterns in C# in such a way that anyone can grasp the idea. What You Will Learn Work with each of the design patterns Implement the design patterns in real-world applications Select an alternative to these patterns by comparing their pros and cons Use Visual Studio Community Edition 2017 to write code and generate output Who This Book Is For Software developers, software testers, and software architects.

C# 3.0 Design Patterns

Judith Bishop
C 3 0 Design Patterns Book PDF

Author : Judith Bishop
Publisher : "O'Reilly Media, Inc."
Page : 317 pages
File Size : 52,6 Mb
Release : 2007-12-10
Category : Computers
ISBN : 9780596551445

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C# 3.0 Design Patterns by Judith Bishop Pdf

If you want to speed up the development of your .NET applications, you're ready for C# design patterns -- elegant, accepted and proven ways to tackle common programming problems. This practical guide offers you a clear introduction to the classic object-oriented design patterns, and explains how to use the latest features of C# 3.0 to code them. C# Design Patterns draws on new C# 3.0 language and .NET 3.5 framework features to implement the 23 foundational patterns known to working developers. You get plenty of case studies that reveal how each pattern is used in practice, and an insightful comparison of patterns and where they would be best used or combined. This well-organized and illustrated book includes: An explanation of design patterns and why they're used, with tables and guidelines to help you choose one pattern over another Illustrated coverage of each classic Creational, Structural, and Behavioral design pattern, including its representation in UML and the roles of its various players C# 3.0 features introduced by example and summarized in sidebars for easy reference Examples of each pattern at work in a real .NET 3.5 program available for download from O'Reilly and the author's companion web site Quizzes and exercises to test your understanding of the material. With C# 3.0 Design Patterns, you learn to make code correct, extensible and efficient to save time up front and eliminate problems later. If your business relies on efficient application development and quality code, you need C# Design Patterns.

Implementing Design Patterns in C# and .NET 5

Alexandre Malavasi
Implementing Design Patterns in C and NET 5 Book PDF

Author : Alexandre Malavasi
Publisher : BPB Publications
Page : 349 pages
File Size : 51,8 Mb
Release : 2021-07-31
Category : Computers
ISBN : 9789390684366

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Implementing Design Patterns in C# and .NET 5 by Alexandre Malavasi Pdf

Implement robust applications by applying efficient Design Patterns with .NET 5 and C# KEY FEATURES ● Detailed theoretical concepts covered, including the use of encapsulation, interfaces, and inheritance. ● Access to solutions applied for software strategy and final product output. ● Simplified demonstration of real applications implementing numerous design patterns. DESCRIPTION This book covers detailed aspects of Design Patterns and Object-Oriented Programming concepts using the most modern version of the C# language and .NET platform, including many real-world examples and good practice guidelines that help developers in building robust and extensible applications. The book begins with the essential concepts of C# programming and the .NET platform. You get your foundation strong by understanding SOLID Principles and the actual implementation of reliable applications. You will be working on most common Design Patterns such as Abstract Factory, Adapter, Composite, Proxy, Command, Strategy, Observer, Factory Method, Singleton, Builder, Interpreter, Mediator, and many other patterns that will help you to create solid enterprise applications. You will also witness the performance of these design patterns in a real software development environment with the help of practical examples. After learning the most common Design Patterns practiced in .NET enterprise applications, the reader will be able to understand and apply good practices of software development based on the object-oriented paradigm to develop complex enterprise applications efficiently and simply. WHAT YOU WILL LEARN ● Fine-tune your knowledge about interfaces, polymorphism, and encapsulation. ● Learn to practice implementing design patterns in enterprise applications. ● Implement rich design patterns: Observer, Strategy, Command, Proxy, and more. ● Get to learn the latest additional design patterns such as Builder, Bridge, and Decorator. ● Includes illustrations, examples, and real use-cases of .NET 5.0 applications. WHO THIS BOOK IS FOR This book is for .NET developers, application developers, and software engineers who want to develop .NET applications with proven techniques and build error-free applications. This book also attracts fresh graduates and entry-level developers as long as basic knowledge about .NET is known to them. TABLE OF CONTENTS 1. C# Fundamentals 2. Introduction to .NET 5 3. Basic Concepts of Object-Oriented Programming 4. Interfaces in C# 5. Encapsulation and Polymorphism in C# 6. SOLID Principles in C# 7. Abstract Factory 8. Abstract Factory 9. Prototype 10. Factory Method 11. Adapter 12. Composite 13. Proxy 14. Command 15. Strategy 16. Observer 17. Good Practices and Additional Design Patterns

Design Patterns

Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides
Design Patterns Book PDF

Author : Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides
Publisher : Pearson Deutschland GmbH
Page : 512 pages
File Size : 50,9 Mb
Release : 1995
Category : Business & Economics
ISBN : 3827328241

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Design Patterns by Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides Pdf

Software -- Software Engineering.

.NET Design Patterns

Praseed Pai,Shine Xavier
NET Design Patterns Book PDF

Author : Praseed Pai,Shine Xavier
Publisher : Packt Publishing Ltd
Page : 307 pages
File Size : 47,6 Mb
Release : 2017-01-31
Category : Computers
ISBN : 9781786461865

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.NET Design Patterns by Praseed Pai,Shine Xavier Pdf

Explore the world of .NET design patterns and bring the benefits that the right patterns can offer to your toolkit today About This Book Dive into the powerful fundamentals of .NET framework for software development The code is explained piece by piece and the application of the pattern is also showcased. This fast-paced guide shows you how to implement the patterns into your existing applications Who This Book Is For This book is for those with familiarity with .NET development who would like to take their skills to the next level and be in the driver's seat when it comes to modern development techniques. Basic object-oriented C# programming experience and an elementary familiarity with the .NET framework library is required. What You Will Learn Put patterns and pattern catalogs into the right perspective Apply patterns for software development under C#/.NET Use GoF and other patterns in real-life development scenarios Be able to enrich your design vocabulary and well articulate your design thoughts Leverage object/functional programming by mixing OOP and FP Understand the reactive programming model using Rx and RxJs Writing compositional code using C# LINQ constructs Be able to implement concurrent/parallel programming techniques using idioms under .NET Avoiding pitfalls when creating compositional, readable, and maintainable code using imperative, functional, and reactive code. In Detail Knowing about design patterns enables developers to improve their code base, promoting code reuse and making their design more robust. This book focuses on the practical aspects of programming in .NET. You will learn about some of the relevant design patterns (and their application) that are most widely used. We start with classic object-oriented programming (OOP) techniques, evaluate parallel programming and concurrency models, enhance implementations by mixing OOP and functional programming, and finally to the reactive programming model where functional programming and OOP are used in synergy to write better code. Throughout this book, we'll show you how to deal with architecture/design techniques, GoF patterns, relevant patterns from other catalogs, functional programming, and reactive programming techniques. After reading this book, you will be able to convincingly leverage these design patterns (factory pattern, builder pattern, prototype pattern, adapter pattern, facade pattern, decorator pattern, observer pattern and so on) for your programs. You will also be able to write fluid functional code in .NET that would leverage concurrency and parallelism! Style and approach This tutorial-based book takes a step-by-step approach. It covers the major patterns and explains them in a detailed manned along with code examples.

Design Patterns in C#

Vaskaran Sarcar
Design Patterns in C Book PDF

Author : Vaskaran Sarcar
Publisher : Createspace Independent Publishing Platform
Page : 182 pages
File Size : 50,8 Mb
Release : 2016-01-17
Category : Electronic
ISBN : 1523436557

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Design Patterns in C# by Vaskaran Sarcar Pdf

This book will focus on the design patterns in C#.The knowledge and efficiency of a programmer is often judged by these concepts in most of the interviews.The author has used his vast experience to choose the most simple examples to help readers for the easy understanding of the topic.His focus here is totally on design and not on the programming logic.Though C# is used as the programming language but if the reader is familiar with any other popular language like C++,Java etc,he/she can also get the concepts very easily.Each of the chapter consists of the core concept, at least one real life example,one computer world example, one complete implementation for each of the patterns with corresponding outputs .The author tried to avoid unnecessary discussion on each topic and made them concise.He has directly entered each of the topic with an easy to remember implementation.

Design Patterns Explained

Alan Shalloway,James R. Trott
Design Patterns Explained Book PDF

Author : Alan Shalloway,James R. Trott
Publisher : Pearson Education
Page : 448 pages
File Size : 47,7 Mb
Release : 2004-10-12
Category : Computers
ISBN : 9780321630049

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Design Patterns Explained by Alan Shalloway,James R. Trott Pdf

"One of the great things about the book is the way the authors explain concepts very simply using analogies rather than programming examples–this has been very inspiring for a product I'm working on: an audio-only introduction to OOP and software development." –Bruce Eckel "...I would expect that readers with a basic understanding of object-oriented programming and design would find this book useful, before approaching design patterns completely. Design Patterns Explained complements the existing design patterns texts and may perform a very useful role, fitting between introductory texts such as UML Distilled and the more advanced patterns books." –James Noble Leverage the quality and productivity benefits of patterns–without the complexity! Design Patterns Explained, Second Edition is the field's simplest, clearest, most practical introduction to patterns. Using dozens of updated Java examples, it shows programmers and architects exactly how to use patterns to design, develop, and deliver software far more effectively. You'll start with a complete overview of the fundamental principles of patterns, and the role of object-oriented analysis and design in contemporary software development. Then, using easy-to-understand sample code, Alan Shalloway and James Trott illuminate dozens of today's most useful patterns: their underlying concepts, advantages, tradeoffs, implementation techniques, and pitfalls to avoid. Many patterns are accompanied by UML diagrams. Building on their best-selling First Edition, Shalloway and Trott have thoroughly updated this book to reflect new software design trends, patterns, and implementation techniques. Reflecting extensive reader feedback, they have deepened and clarified coverage throughout, and reorganized content for even greater ease of understanding. New and revamped coverage in this edition includes Better ways to start "thinking in patterns" How design patterns can facilitate agile development using eXtreme Programming and other methods How to use commonality and variability analysis to design application architectures The key role of testing into a patterns-driven development process How to use factories to instantiate and manage objects more effectively The Object-Pool Pattern–a new pattern not identified by the "Gang of Four" New study/practice questions at the end of every chapter Gentle yet thorough, this book assumes no patterns experience whatsoever. It's the ideal "first book" on patterns, and a perfect complement to Gamma's classic Design Patterns. If you're a programmer or architect who wants the clearest possible understanding of design patterns–or if you've struggled to make them work for you–read this book.

Design Patterns

Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides
Design Patterns Book PDF

Author : Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides
Publisher : Pearson Education
Page : 495 pages
File Size : 42,7 Mb
Release : 1994-10-31
Category : Computers
ISBN : 9780321700698

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Design Patterns by Erich Gamma,Richard Helm,Ralph Johnson,John Vlissides Pdf

The Gang of Four’s seminal catalog of 23 patterns to solve commonly occurring design problems Patterns allow designers to create more flexible, elegant, and ultimately reusable designs without having to rediscover the design solutions themselves. Highly influential, Design Patterns is a modern classic that introduces what patterns are and how they can help you design object-oriented software and provides a catalog of simple solutions for those already programming in at last one object-oriented programming language. Each pattern: Describes the circumstances in which it is applicable, when it can be applied in view of other design constraints, and the consequences and trade-offs of using the pattern within a larger design Is compiled from real systems and based on real-world examples Includes downloadable C++ source code that demonstrates how patterns can be implemented and Python From the preface: “Once you the design patterns and have had an ‘Aha!’ (and not just a ‘Huh?’) experience with them, you won't ever think about object-oriented design in the same way. You'll have insights that can make your own designs more flexible, modular, reusable, and understandable - which is why you're interested in object-oriented technology in the first place, right?”

Design Patterns in C#

Vaskaran Sarcar
Design Patterns in C Book PDF

Author : Vaskaran Sarcar
Publisher : CreateSpace
Page : 156 pages
File Size : 50,9 Mb
Release : 2015-05-09
Category : Electronic
ISBN : 1512089648

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Design Patterns in C# by Vaskaran Sarcar Pdf

This book will focus on the design patterns in C#.The knowledge and efficiency of a programmer is often judged by these concepts in most of the interviews.The author has used his vast experience to choose the most simple examples to help readers for the easy understanding of the topic.His focus here is totally on design and not on the programming logic.Though C# is used as the programming language but if the reader is familiar with any other popular language like C++,Java etc,he/she can also get the concepts very easily.Each of the chapter consists of the core concept, at least one real life example,one computer world example, one complete implementation for each of the patterns with corresponding outputs .The author tried to avoid unnecessary discussion on each topic and made them concise.He has directly entered each of the topic with an easy to remember implementation.

Design Patterns for Embedded Systems in C

Bruce Powel Douglass
Design Patterns for Embedded Systems in C Book PDF

Author : Bruce Powel Douglass
Publisher : Elsevier
Page : 471 pages
File Size : 49,5 Mb
Release : 2010-11-03
Category : Computers
ISBN : 9780080959719

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Design Patterns for Embedded Systems in C by Bruce Powel Douglass Pdf

A recent survey stated that 52% of embedded projects are late by 4-5 months. This book can help get those projects in on-time with design patterns. The author carefully takes into account the special concerns found in designing and developing embedded applications specifically concurrency, communication, speed, and memory usage. Patterns are given in UML (Unified Modeling Language) with examples including ANSI C for direct and practical application to C code. A basic C knowledge is a prerequisite for the book while UML notation and terminology is included. General C programming books do not include discussion of the contraints found within embedded system design. The practical examples give the reader an understanding of the use of UML and OO (Object Oriented) designs in a resource-limited environment. Also included are two chapters on state machines. The beauty of this book is that it can help you today. . Design Patterns within these pages are immediately applicable to your project Addresses embedded system design concerns such as concurrency, communication, and memory usage Examples contain ANSI C for ease of use with C programming code

Design Patterns in .NET

Dmitri Nesteruk
Design Patterns in NET Book PDF

Author : Dmitri Nesteruk
Publisher : Apress
Page : 356 pages
File Size : 41,7 Mb
Release : 2019-05-11
Category : Computers
ISBN : 9781484243664

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Design Patterns in .NET by Dmitri Nesteruk Pdf

Implement design patterns in .NET using the latest versions of the C# and F# languages. This book provides a comprehensive overview of the field of design patterns as they are used in today’s developer toolbox. Using the C# programming language, Design Patterns in .NET explores the classic design pattern implementation and discusses the applicability and relevance of specific language features for the purpose of implementing patterns. You will learn by example, reviewing scenarios where patterns are applicable. MVP and patterns expert Dmitri Nesteruk demonstrates possible implementations of patterns, discusses alternatives and pattern inter-relationships, and illustrates the way that a dedicated refactoring tool (ReSharper) can be used to implement design patterns with ease. What You'll Learn Know the latest pattern implementations available in C# and F# Refer to researched and proven variations of patterns Study complete, self-contained examples including many that cover advanced scenarios Use the latest implementations of C# and Visual Studio/ReSharper Who This Book Is For Developers who have some experience in the C# language and want to expand their comprehension of the art of programming by leveraging design approaches to solving modern problems

Clean Code with C#

Jason Alls
Clean Code with C Book PDF

Author : Jason Alls
Publisher : Packt Publishing Ltd
Page : 492 pages
File Size : 43,5 Mb
Release : 2023-12-22
Category : Computers
ISBN : 9781837632992

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Clean Code with C# by Jason Alls Pdf

Enhance your programming skills through code reviews, TDD and BDD implementation, and API design to overcome code inefficiency, redundancy, and other issues arising from bad code Key Features Write code that seamlessly integrates with other systems while maintaining well-defined software boundaries Understand how coding principles and standards elevate software quality Learn how to avoid common errors while implementing concurrency or threading Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionTraditionally associated with Windows desktop applications and game development, C# has expanded into web, cloud, and mobile development. However, despite its extensive coding features, professionals often encounter issues with efficiency, scalability, and maintainability due to poor code. Clean Code in C# guides you in identifying and resolving these problems using coding best practices. This book starts by comparing good and bad code to emphasize the importance of coding standards, principles, and methodologies. It then covers code reviews, unit testing, and test-driven development, and addresses cross-cutting concerns. As you advance through the chapters, you’ll discover programming best practices for objects, data structures, exception handling, and other aspects of writing C# computer programs. You’ll also explore API design and code quality enhancement tools, while studying examples of poor coding practices to understand what to avoid. By the end of this clean code book, you’ll have the developed the skills needed to apply industry-approved coding practices to write clean, readable, extendable, and maintainable C# code.What you will learn Master the art of writing evolvable and adaptable code Implement the fail-pass-refactor methodology using a sample C# console application Develop custom C# exceptions that provide meaningful information Identify low-quality C# code in need of refactoring Improve code performance using profiling and refactoring tools Create efficient and bug-free code using functional programming techniques Write cross-platform code using MAUI Develop cloud-deployable microservices for versatile applications Who this book is for This coding book is for proficient C# developers, team leads, senior software engineers, and software architects who want to improve the efficiency of their legacy systems. A strong understanding of C# programming is assumed.

Hands-On Design Patterns with C# and .NET Core

Gaurav Aroraa,Jeffrey Chilberto
Hands On Design Patterns with C and NET Core Book PDF

Author : Gaurav Aroraa,Jeffrey Chilberto
Publisher : Packt Publishing Ltd
Page : 402 pages
File Size : 51,8 Mb
Release : 2019-07-05
Category : Computers
ISBN : 9781789138436

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Hands-On Design Patterns with C# and .NET Core by Gaurav Aroraa,Jeffrey Chilberto Pdf

Apply design patterns to solve problems in software architecture and programming using C# 7.x and .NET Core 2 Key FeaturesEnhance your programming skills by implementing efficient design patterns for C# and .NETExplore design patterns for functional and reactive programming to build robust and scalable applicationsDiscover how to work effectively with microservice and serverless architecturesBook Description Design patterns are essentially reusable solutions to common programming problems. When used correctly, they meet crucial software requirements with ease and reduce costs. This book will uncover effective ways to use design patterns and demonstrate their implementation with executable code specific to both C# and .NET Core. Hands-On Design Patterns with C# and .NET Core begins with an overview of object-oriented programming (OOP) and SOLID principles. It provides an in-depth explanation of the Gang of Four (GoF) design patterns such as creational, structural, and behavioral. The book then takes you through functional, reactive, and concurrent patterns, helping you write better code with streams, threads, and coroutines. Toward the end of the book, you’ll learn about the latest trends in architecture, exploring design patterns for microservices, serverless, and cloud native applications. You’ll even understand the considerations that need to be taken into account when choosing between different architectures such as microservices and MVC. By the end of the book, you will be able to write efficient and clear code and be comfortable working on scalable and maintainable projects of any size. What you will learnMake your code more flexible by applying SOLID principlesFollow the Test-driven development (TDD) approach in your .NET Core projectsGet to grips with efficient database migration, data persistence, and testing techniquesConvert a console application to a web application using the right MVPWrite asynchronous, multithreaded, and parallel codeImplement MVVM and work with RxJS and AngularJS to deal with changes in databasesExplore the features of microservices, serverless programming, and cloud computingWho this book is for If you have a basic understanding of C# and the .NET Core framework, this book will help you write code that is easy to reuse and maintain with the help of proven design patterns that you can implement in your code.

Enterprise Architecture with .NET

Jean-Philippe Gouigoux
Enterprise Architecture with NET Book PDF

Author : Jean-Philippe Gouigoux
Publisher : Packt Publishing Ltd
Page : 772 pages
File Size : 53,7 Mb
Release : 2024-05-31
Category : Computers
ISBN : 9781835081471

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Enterprise Architecture with .NET by Jean-Philippe Gouigoux Pdf

Write applications in C#/.NET that will stand the test of time, evolving with the information systems they belong to and the services they interoperate with by using standards and solid business-related architecture rules Key Features Learn the principles of business-aligned software architecture Relate theory to several well-known architecture frameworks Apply the knowledge you gain to create a .NET application with a standard-based API Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionThe software development domain continues to grow exponentially, and information systems have become the backbone of most industries, including non-digital-native ones. However, technical debt, coupling, and a high level of maintenance - sometimes bringing IT systems to a complete halt – continue to present a problem. The software industry has to still apply standards-based, modular, and repeatable approaches that exist in other industries. This book demonstrates such methods in action, particularly business/IT alignment principles. As you progress, you’ll cover advanced concepts and theories currently researched in academia. Then, you’ll be guided toward a practical framework to transfer these approaches to actual software architecture. Finally, a dedicated section will help you apply the knowledge you gain to a sample application in .NET where API design, dependency management, and code writing will be explained in detail to relate to the business-alignment principles explained at the beginning. Throughout the book, you’ll get equipped with the skills to create modular, long-living applications that serve your users better. By the end of this .NET book, you’ll not only have learned new concepts but also gained the ability to apply them immediately to your upcoming software endeavors. What you will learn Comprehend the main problems in real-world software development Understand what business alignment means Create a four-layer map of an information system Become proficient in SOLID, C4, and domain-driven design (DDD) architecture Get up to speed with semantics, APIs, and standards for better interoperability Include BPM, MDM, and BRMS in information systems Design an application with strict responsibility separation Who this book is for This book is for software architects who want to have an in-depth understanding of how their applications will be used and how they can fight technical debt as well as design software to keep it working even when business requirements evolve. If your previous software designs experienced progressive loss of performance and the capacity to evolve, this book is for you.