Book Image

Hands-On Domain-Driven Design with .NET Core

By : Alexey Zimarev
Book Image

Hands-On Domain-Driven Design with .NET Core

By: Alexey Zimarev

Overview of this book

Developers across the world are rapidly adopting DDD principles to deliver powerful results when writing software that deals with complex business requirements. This book will guide you in involving business stakeholders when choosing the software you are planning to build for them. By figuring out the temporal nature of behavior-driven domain models, you will be able to build leaner, more agile, and modular systems. You’ll begin by uncovering domain complexity and learn how to capture the behavioral aspects of the domain language. You will then learn about EventStorming and advance to creating a new project in .NET Core 2.1; you’ll also and write some code to transfer your events from sticky notes to C#. The book will show you how to use aggregates to handle commands and produce events. As you progress, you’ll get to grips with Bounded Contexts, Context Map, Event Sourcing, and CQRS. After translating domain models into executable C# code, you will create a frontend for your application using Vue.js. In addition to this, you’ll learn how to refactor your code and cover event versioning and migration essentials. By the end of this DDD book, you will have gained the confidence to implement the DDD approach in your organization and be able to explore new techniques that complement what you’ve learned from the book.
Table of Contents (14 chapters)

EventStorming

In previous chapters, we learned how important it is to understand the actual problem. We also went deeper into the concept of Ubiquitous Language and explained that it is not only a glossary of terms but also the system's behavior described in words.

It remains unclear how to start the knowledge crunching and how to intensify our communication with domain experts to understand the problem space better and get a proper overview of what are we going to build.

Very often, we see that developers get to know the domain in the form of requirements. We have already been through this topic, and by now you should realize that requirements have their flaws. So, you want to improve your knowledge by talking directly to domain experts and organizing a workshop or meeting with them. Some people come, and you have a conversation for two or three hours; a lot of things get...