Implementing Domain-Driven Designs

Eric Evans' masterful book, Domain-Driven Design, is deep in theory and pattern language, but light on implementation guidance. With so much to offer, DDD should be put to use by many more teams seeking to tackle complexity in the heart of their software systems. However, without clear examples of how behavior-rich domain model implementations are achieved, many who could benefit greatly, instead shy away. Here's your chance to grasp DDD as Vaughn shares his experience through three practical example domain models implemented in Java.

Gain the insight you need to practice domain-driven design on your projects. Uses of patterns for strategic design include Bounded Context with its Ubiquitous Language, Context Map, Anticorruption Layer, Open Host System, and Published Language. The tactical patterns used for core model implementation include Modules, Value Objects, Entities, Aggregates, Services, Events, Factories, and Repositories backed by persistence mapping techniques. Integration between multiple Bounded Contexts is also demonstrated. Learn methods for managing aggregate boundaries, complexity, and correctness from the inside using Tell-Don't-Ask, Law of Demeter, Command-Query Separation, command-based editing models, validating domain objects, and business rules execution.

About Vaughn Vernon

Vaughn Vernon is a veteran software developer with more than 25 years of experience in system, application, and toolkit architecture, design, and development. Vaughn brings a unique mix of business and technology talent to every project. Vaughn's experience spans architecture, domain-driven design, and construction of COTS and custom component-based frameworks and business applications across a wide variety of industries. Vaughn founded a software product and consulting organization in the 1980s that served over 5,000 customers. He has consulted with General Dynamics in the aerospace industry, for Fresenius Medical Care and Gambro Healthcare in the acute renal care field. He has consulted with national clients such as AT&T and Compaq (HP), as well as internationally with Emirates Airlines in the UAE and ProActivity in Israel. Vaughn lead software development efforts for an insurance-services startup that became part of WebMD.

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