Book Image

Domain-Driven Design with Java - A Practitioner’s Guide

By : Premanand Chandrasekaran, Karthik Krishnan
Book Image

Domain-Driven Design with Java - A Practitioner’s Guide

By: Premanand Chandrasekaran, Karthik Krishnan

Overview of this book

Domain-Driven Design (DDD) makes available a set of techniques and patterns that enable domain experts, architects, and developers to work together to decompose complex business problems into a set of well-factored, collaborating, and loosely coupled subsystems. This practical guide will help you as a developer and architect to put your knowledge to work in order to create elegant software designs that are enjoyable to work with and easy to reason about. You'll begin with an introduction to the concepts of domain-driven design and discover various ways to apply them in real-world scenarios. You'll also appreciate how DDD is extremely relevant when creating cloud native solutions that employ modern techniques such as event-driven microservices and fine-grained architectures. As you advance through the chapters, you'll get acquainted with core DDD’s strategic design concepts such as the ubiquitous language, context maps, bounded contexts, and tactical design elements like aggregates and domain models and events. You'll understand how to apply modern, lightweight modeling techniques such as business value canvas, Wardley mapping, domain storytelling, and event storming, while also learning how to test-drive the system to create solutions that exhibit high degrees of internal quality. By the end of this software design book, you'll be able to architect, design, and implement robust, resilient, and performant distributed software solutions.
Table of Contents (17 chapters)
Part 1: Foundations
Part 2: Real-World DDD
Part 3: Evolution Patterns

Understanding international trade strategy at KP Bank

To arrive at an optimal solution, it is important to have a strong appreciation of the company’s business goals and their alignment to support the needs of the users of the solution. We will introduce a set of tools and techniques we have found to be useful.


It is pertinent to note that these tools were conceived independently, but when practiced in conjunction with other DDD techniques, they can accentuate the effectiveness of the overall process and solution. The use of these tools should be considered complementary to your DDD journey.

Let’s look at some of the most popular techniques we have employed to quickly gain an understanding of the business problem and propose solutions.

The business model canvas

As we have mentioned several times, it is important to make sure that we are solving the right problem before attempting to solve it. The business model canvas, originally conceived by Swiss...