▪ Instead of using layered architecture with horizontal logical

layers, we can organize our code across vertical slices of

business functionality.

▪ These slices are determined based on business demands,

rather than enforced by technical constraints.

▪ When we add or change a feature in an application, our

changes are scoped to the area of business concern not

technical logical layers.

▪ With the modular monolith architecture, organize our codes

as a vertical slices, and as our system continues to grow,

organizing our code around of business functionalities into

Modules.

▪ Modules can be a potential microservices when need to

independently deployed and scale in the future refactorings

our architecture

https://sookocheff.com/post/architecture/making-modular-monoliths-work/