Architectural Patterns

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.