Implementing Domain-Driven Design

“For software developers of all experience levels looking to improve their results, and design and implement domain-driven enterprise applications consistently with the best current state of professional practice, Implementing Domain-Driven Design will impart a treasure trove of knowledge hard won within the DDD and enterprise application architecture communities over the last couple decades.”

–Randy Stafford, Architect At-Large, Oracle Coherence Product Development

 

“This book is a must-read for anybody looking to put DDD into practice.”

–Udi Dahan, Founder of NServiceBus

 

Implementing Domain-Driven Design presents a top-down approach to understanding domain-driven design (DDD) in a way that fluently connects strategic patterns to fundamental tactical programming tools. Vaughn Vernon couples guided approaches to implementation with modern architectures, highlighting the importance and value of focusing on the business domain while balancing technical considerations.

 

Building on Eric Evans’ seminal book, Domain-Driven Design, the author presents practical DDD techniques through examples from familiar domains. Each principle is backed up by realistic Java examples–all applicable to C# developers–and all content is tied together by a single case study: the delivery of a large-scale Scrum-based SaaS system for a multitenant environment.

 

The author takes you far beyond “DDD-lite” approaches that embrace DDD solely as a technical toolset, and shows you how to fully leverage DDD’s “strategic design patterns” using Bounded Context, Context Maps, and the Ubiquitous Language. Using these techniques and examples, you can reduce time to market and improve quality, as you build software that is more flexible, more scalable, and more tightly aligned to business goals.

 

Coverage includes

• Getting started the right way with DDD, so you can rapidly gain value from it
• Using DDD within diverse architectures, including Hexagonal, SOA, REST, CQRS, Event-Driven, and Fabric/Grid-Based
• Appropriately designing and applying Entities–and learning when to use Value Objects instead
• Mastering DDD’s powerful new Domain Events technique
• Designing Repositories for ORM, NoSQL, and other databases

 

Implementing Domain-Driven Design presents a top-down approach to understanding domain-driven design (DDD) in a way that fluently connects strategic patterns to fundamental tactical programming tools. Vaughn Vernon couples guided approaches to implementation within modern architectural styles, highlighting the importance and value of focusing on the business domain while balancing technical considerations. By doing so, he clarifies the role and implications of DDD, while helping software professionals overcome its challenges.

 

Building on Eric Evans’ seminal book, Domain-Driven Design, Vernon presents practical DDD techniques through examples from familiar domains. Each principle is backed up by realistic Java examples–all applicable to C# developers–and all content is tied together by a single case study: the delivery of a large-scale Scrum-based SaaS system for a multitenant environment.

 

The author takes you far beyond “DDD-lite” approaches that embrace DDD solely as a technical toolset, showing how to fully leverage its “strategic design patterns” using Bounded Context, Context Maps, and the Ubiquitous Language. Using these techniques and examples, you can reduce time to market and improve quality, as you build software that is more flexible, more scalable, and more tightly aligned to business goals. Coverage includes

 

• Getting started the right way with DDD, so you can rapidly gain value from it
• Creating Context Maps that help you understand business domains, model boundaries, and discover integration opportunities
• Using DDD within diverse architectures, including Hexagonal, SOA, REST, CQRS, Event-Driven, and Fabric/Grid-Based
• Appropriately designing and applying Entities–and learning when to use Value Objects instead
• Mastering DDD’s powerful new Domain Events technique
• Organizing model objects into correctly sized containers with limited coupling to objects elsewhere
• Cutting through the complexity previously associated with Aggregates, and using them to design more effective models
• Identifying opportunities to use Factories in a DDD setting
• Designing Repositories for ORM, NoSQL, and other databases
• Integrating Core Domains with supporting Bounded Contexts

 

Succeed with Domain-Driven Design (DDD), today's best-practice framework and common language for making design decisions that accelerate projects, keeping them on track while smoothly incorporating inevitable change. Vaughn Vernon's Implementing Domain-Driven Design builds on Eric Evans' seminal Domain-Driven Design, helping practitioners flatten the DDD learning curve, identify their best opportunities to apply DDD, and overcome common implementation pitfalls. Vernon presents concrete and realistic DDD techniques through examples from familiar domains, such as a Scrum-based project management application that integrates with a collaboration suite and security provider. Each principle is backed up by realistic Java examples, and all content is tied together by a single case study of a company charged with delivering a set of advanced software systems with DDD. Using this book's techniques, organizations can reduce time-to-market and build better software that is more flexible, more scalable, and better aligned to business goals. For software practitioners who are new to DDD, for those who've used DDD but not yet succeeded; and for DDD users who have experienced success and want to become even more effective. Readers will likely include software architects, systems anaysts, application developers, and project managers.

Vaughn Vernon is a veteran software craftsman with more than twenty-five years of experience in software design, development, and architecture. Vernon is a thought leader in simplifying software design and implementation using innovative methods in distributed computing. He has been programming with object-oriented languages since the 1980s and applying Domain-Driven Design since his Smalltalk domain modeling days in the early 1990s. He consults and speaks internationally, and has taught his Implementing Domain-Driven Design classes on multiple continents.

 

The practical, example-driven guide to transforming the promise of Domain-Driven Design (DDD) into reality

 

• Starts where Eric Evans' seminal book leaves off, helping DDD adopters smooth their learning curves, choose their best opportunities, and succeed
• Focuses on relevant example domains, including Scrum-based project management, collaboration suites, and security providers
• Working examples help readers make better strategic and tactical choices and overcome common pitfalls