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

Chapter 3: Understanding the Domain

“A spoon does not know the taste of soup, nor a learned fool the taste of wisdom.”

– Welsh proverb

In this chapter, we will introduce a fictitious organization named Kosmo Prima (KP) Bank that is looking to modernize its product offerings in the international trade business. In order to establish a business strategy that sets it up for sustained success in the medium to long term, we will employ a series of techniques and practices to help expedite its path from strategy to execution.

At the outset, let’s gain a high-level understanding of KP Bank’s business domain before we dive deeper.

In this chapter, we will cover the following topics:

  • The domain of international trade
  • International trade at KP Bank
  • Understanding international trade strategy at KP Bank
  • International trade products and services

At the end of this chapter, you will gain an appreciation of how to employ...