Principles, characteristics, and practices of DDD

Before we delve into various design patterns, let us touch upon the fundamental principles of DDD, then few primary characteristics constituents, and also few best practices that help teams to adopt and follow DDD.

Principles

The fundamental principles of DDD are described in the following sections.

Focusing on the core domain

This principle suggests product development teams to focus more on the core domain, that is, the parts that are most important to a business and which need more attention than others. So, we need to identify the core domain by distilling and decomposing a big problem domain into subdomains. For instance, when designing a retail banking software, we should focus on the credit and debit accounting instead of the manufacturing and distribution of credit cards and debit cards as they support functions and they can be outsourced as well.

Collaborate and learn

As we mentioned in the introduction section, software experts may not...