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Domain-Driven Design (DDD) software modeling delivers powerful results in practice, not just in theory, which is why developers worldwide are rapidly moving to adopt it. Now, for the first time, there’s an accessible guide to the basics of DDD: What it is, what problems it solves, how it works, and how to quickly gain value from it.
Concise, readable, and actionable, Domain-Driven Design Distilled never buries you in detail–it focuses on what you need to know to get results. Vaughn Vernon, author of the best-selling Implementing Domain-Driven Design, draws on his twenty years of experience applying DDD principles to real-world situations. He is uniquely well-qualified to demystify its complexities, illuminate its subtleties, and help you solve the problems you might encounter.
Vernon guides you through each core DDD technique for building better software. You’ll learn how to segregate domain models using the powerful Bounded Contexts pattern, to develop a Ubiquitous Language within an explicitly bounded context, and to help domain experts and developers work together to create that language. Vernon shows how to use Subdomains to handle legacy systems and to integrate multiple Bounded Contexts to define both team relationships and technical mechanisms.
Domain-Driven Design Distilled brings DDD to life. Whether you’re a developer, architect, analyst, consultant, or customer, Vernon helps you truly understand it so you can benefit from its remarkable power.
Download the sample pages (includes Chapter 1 and Index)
About the Author xvii
Chapter 1: DDD for Me 1
Will DDD Hurt? 2
Good, Bad, and Effective Design 3
Strategic Design 7
Tactical Design 8
The Learning Process and Refining Knowledge 9
Let’s Get Started! 10
Chapter 2: Strategic Design with Bounded Contexts and the Ubiquitous Language 11
Domain Experts and Business Drivers 17
Case Study 21
Fundamental Strategic Design Needed 25
Challenge and Unify 29
Developing a Ubiquitous Language 34
Chapter 3: Strategic Design with Subdomains 45
What Is a Subdomain? 46
Types of Subdomains 46
Dealing with Complexity 47
Chapter 4: Strategic Design with Context Mapping 51
Kinds of Mappings 54
Making Good Use of Context Mapping 60
An Example in Context Mapping 70
Chapter 5: Tactical Design with Aggregates 75
Why Used 76
Aggregate Rules of Thumb 81
Modeling Aggregates 88
Chapter 6: Tactical Design with Domain Events 99
Designing, Implementing, and Using Domain Events 100
Event Sourcing 107
Chapter 7: Acceleration and Management Tools 111
Event Storming 112
Managing DDD on an Agile Project 125
Timeboxed Modeling 132