Strategic Monoliths and Microservices helps business decision-makers and technical team members collaborate to clearly understand their strategic problems, and identify their optimal architectural approaches, whether those turn out to be distributed microservices, well-modularized monoliths, or coarse-grained services partway between the two. Writing for MBA and IT students alike, leading software architecture expert Vaughn Vernon and Tomasz Jaskua guide you through making balanced architecture compositional decisions based on need and purpose rather than popular opinion, so you can maximize business value and deliver systems that evolve more easily. Throughout, the authors provide realistic application examples, showing how to construct well-designed monoliths that are maintainable and extensible, and how to decompose massively tangled legacy systems into truly effective microservices.

Make Software Architecture Choices That Maximize Value and Innovation"[Vernon and Jaskua] provide insights, tools, proven best practices, and architecture styles both from the business and engineering viewpoint. . . . This book deserves to become a must-read for practicing software engineers, executives as well as senior managers."--Michael Stal, Certified Senior Software Architect, Siemens TechnologyStrategic Monoliths and Microservices helps business decision-makers and technical team members clearly understand their strategic problems through collaboration and identify optimal architectural approaches, whether the approach is distributed microservices, well-modularized monoliths, or coarser-grained services partway between the two. Leading software architecture experts Vaughn Vernon and Tomasz Jaskua show how to make balanced architectural decisions based on need and purpose, rather than hype, so you can promote value and innovation, deliver more evolvable systems, and avoid costly mistakes. Using realistic examples, they show how to construct well-designed monoliths that are maintainable and extensible, and how to gradually redesign and reimplement even the most tangled legacy systems into truly effective microservices.Link software architecture planning to business innovation and digital transformationOvercome communication problems to promote experimentation and discovery-based innovationMaster practices that support your value-generating goals and help you invest more strategicallyCompare architectural styles that can lead to versatile, adaptable applications and servicesRecognize when monoliths are your best option and how best to architect, design, and implement themLearn when to move monoliths to microservices and how to do it, whether they're modularized or a "Big Ball of Mud"Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

Autorentext

Vaughn Vernon is a champion of simplifying software architecture and development, with an emphasis on reactive methods. He has a unique ability to teach and lead with Domain-Driven Design using lightweight tools to unveil unimagined value. He helps organizations achieve competitive advantages using enduring tools such as architectures, patterns, and approaches, and through partnerships between business stakeholders and software developers.

Tomasz Jaskua has 20 years of professional experience as a developer, software architect, team leader, trainer, and technical conference speaker. An IDDD Workshop trainer in both French and Polish, he founded Paris Domain-Driven Design and F# user groups. Jaskua's company, Luteceo (luteceo.fr), spreads good software and architecture practices based on Domain-Driven Design and software craftsmanship. He previously worked for many companies in e-commerce, industry, insurance, and finance, gaining deep experience for creating software that delivers clear business value and competitive advantage.

Zusammenfassung
Make Software Architecture Choices That Maximize Value and Innovation
"[Vernon and Jaskua] provide insights, tools, proven best practices, and architecture styles both from the business and engineering viewpoint. . . . This book deserves to become a must-read for practicing software engineers, executives as well as senior managers."
--Michael Stal, Certified Senior Software Architect, Siemens Technology
Strategic Monoliths and Microservices helps business decision-makers and technical team members clearly understand their strategic problems through collaboration and identify optimal architectural approaches, whether the approach is distributed microservices, well-modularized monoliths, or coarser-grained services partway between the two.

Leading software architecture experts Vaughn Vernon and Tomasz Jaskua show how to make balanced architectural decisions based on need and purpose, rather than hype, so you can promote value and innovation, deliver more evolvable systems, and avoid costly mistakes. Using realistic examples, they show how to construct well-designed monoliths that are maintainable and extensible, and how to gradually redesign and reimplement even the most tangled legacy systems into truly effective microservices.

• Link software architecture planning to business innovation and digital transformation
• Overcome communication problems to promote experimentation and discovery-based innovation
• Master practices that support your value-generating goals and help you invest more strategically
• Compare architectural styles that can lead to versatile, adaptable applications and services
• Recognize when monoliths are your best option and how best to architect, design, and implement them

• Learn when to move monoliths to microservices and how to do it, whether they're modularized or a "Big Ball of Mud"Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

  Inhalt
  Foreword xiii
  Preface xvii
  Acknowledgments xxv
  About the Authors xxxi

  Part I: Transformational Strategic Learning through Experimentation 1

  Executive Summary 3

  Chapter 1: Business Goals and Digital Transformation 7
  Digital Transformation: What Is the Goal? 8
  Why Software Goes Wrong 11
  Your Enterprise and Conway's Law 18
  (Re)Thinking Software Strategy 24
  Are Monoliths Bad? 30
  Are Microservices Good? 31
  Don't Blame Agile 34
  Getting Unstuck 36
  Summary 37
  References 38
  
  Chapter 2: Essential Strategic Learning Tools 39
  Making Decisions Early and Late, Right and Wrong 40
  Culture and Teams 43
  Modules First 51
  Deployment Last 55
  Everything in Between 57
  Where Is Your Spaghetti and How Fast Does It Cook? 70
  Strategic Architecture 70
  Applying the Tools 72
  Summary 75
  References 75

  Chapter 3: Events-First Experimentation and Discovery 77
  Commands and Events 78
  Rapid Learning with EventStorming 81
  Applying the Tools 92
  Summary 99
  References 100

  Part II: Driving Business Innovation 101

  Executive Summary 103

  Chapter 4: Reaching Domain-Driven Results 109
  Domains and Subdomains 111
  Summary 115
  References 116

  Chapter 5: Contextual Expertise 117
  Bounded Context and Ubiquitous Language 117
  Core Domain 121
  Supporting Subdomains, Generic Subdomains, and Technical Mechanisms 123
  Business Capabilities and Contexts 125
  Not Too Big, Not Too Small 128
  Summary 129
  References 130
  
  Chapter 6: Mapping, Failing, and Succeeding--Choose Two 131
  Context Mapping 131
  Topography Modeling 151
  Ways to Fail and Succeed 154
  Applying the Tools 158
  Summary 163
  References 164

  Chapter 7: Modeling Domain Concepts 165
  Entities 166
  Value Objects 167
  Aggregates 168
  Domain Services 169
  …