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All rights reserved.  \nPrinted in the United States of America.  \nPublished by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.  \nO’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles ([http://oreilly.com/safari](http://oreilly.com/safari)). For more information, contact our corporate/institutional sales department: 800-998-9938 or [corporate@oreilly.com](corporate@oreilly.com).  \nEditor: Heather Scherer  \nProduction Editor: Colleen Lobner  \nCopyeditor: Amanda Kersey  \nInterior Designer: David Futato  \nCover Designer: Ellie Volckhausen  \nIllustrator: Rebecca Demarest  \nFebruary 2015: First Edition  \nRevision History for the First Edition  \n2015-02-24: First Release  \n2015-03-30: Second Release  \n2017-06-22: Third Release  \nThe O’Reilly logo is a registered trademark of O’Reilly Media, Inc. Software Architec‐ ture Patterns, the cover image, and related trade dress are trademarks of O’Reilly Media, Inc.  \nWhile the publisher and the author have used good faith efforts to ensure that the information and instructions contained in this work are accurate, the publisher and the author disclaim all responsibility for errors or omissions, including without limi‐ tation responsibility for damages resulting from the use of or reliance on this work. Use of the information and instructions contained in this work is at your own risk. If any code samples or other technology this work contains or describes is subject to open source licenses or the intellectual property rights of others, it is your responsi‐ bility to ensure that your use thereof complies with such licenses and/or rights.  \n978-1-491-92424-2  \n[LSI]  \nTable of Contents  \nIntroduction................................................... v  \n1. Layered Architecture......................................... 1  \nPattern Description 1  \nKey Concepts 3  \nPattern Example 5  \nConsiderations 7  \nPattern Analysis 8  \n2. Event-Driven Architecture................................... 11  \nMediator Topology 11  \nBroker Topology 14  \nConsiderations 17  \nPattern Analysis 18  \n3. Microkernel Architecture.................................... 21  \nPattern Description 21  \nPattern Examples 23  \nConsiderations 24  \nPattern Analysis 25  \n4. Microservices Architecture Pattern............................ 27  \nPattern Description 27  \nPattern Topologies 29  \nAvoid Dependencies and Orchestration 32  \nConsiderations 33  \nPattern Analysis 34  \n5. Space-Based Architecture.................................... 37  \nPattern Description 38  \nPattern Dynamics 39  \nConsiderations 42  \nPattern Analysis 43  \nA. Pattern Analysis Summary................................... 45  \nIntroduction  \nIt’s all too common for developers to start coding an application without a formal architecture in place. Without a clear and welldefined architecture, most developers and architects will resort to the de facto standard traditional layered architecture pattern (also called the n-tier architecture), creating implicit layers by separating source-code modules into packages. Unfortunately, what often results from this practice is a collection of unorganized source-code modules that lack clear roles, responsibilities, and relationships to one another. This is commonly referred to as the big ball of mud architecture anti-pattern.  \nApplications lacking a formal architecture are generally tightly cou‐ pled, brittle, difficult to change, and without a clear vision or direc‐ tion. As a result, it is very difficult to determine the architectural characteristics of the application without fully understanding the inner-workings of every component and module in the system. Basic questions about deployment and maintenance are hard to answe","cbCaitBZ7fyh1UNm","https://ap.wps.com/l/cbCaitBZ7fyh1UNm","pdf",5387695,54,"English","# Introduction\n# Layered Architecture\n## Pattern Description\n# Event-Driven Architecture\n## Mediator Topology\n## Broker Topology\n# Microkernel Architecture\n## Pattern Description\n## Pattern Examples\n# Microservices Architecture Pattern\n## Pattern Description\n## Pattern Topologies\n## Avoid Dependencies and Orchestration\n# Space-Based Architecture\n## Pattern Description\n## Pattern Dynamics\n# Pattern Analysis Summary","[{\"question\":\"Why do software teams need architecture patterns instead of starting with code directly?\",\"answer\":\"Developers often begin without a formal architecture, which can lead to unorganized modules with unclear roles and relationships. Architecture patterns help define consistent behavior and characteristics, making systems easier to understand and evolve.\"},{\"question\":\"What key questions does the book highlight when evaluating an application’s architecture?\",\"answer\":\"It emphasizes questions about scalability, performance characteristics, responsiveness to change, deployment characteristics, and how responsive the architecture is overall.\"},{\"question\":\"How does the book approach choosing an architecture pattern for specific business needs?\",\"answer\":\"It explains that each architecture pattern has strengths and weaknesses and that architects must justify their decisions. The goal is to provide enough information to make and support that choice.\"}]","Software Architecture Patterns - Understanding Common Architecture Patterns and When to Use Them | PDF",1790067823,136]