In Magento2 module is one of the components which provides a certain feature / functionality. For an example, module-checkout provides checkout functionality in the store front. Similarly each module has it's own features and and they can also be dependent on other modules. I insist you to go through Magento 2 official docs for proper knowledge

In Magento2 module is one of the components which provides a certain feature / functionality. For an example, module-checkout provides checkout functionality in the store front. Similarly each module has it's own features and and they can also be dependent on other modules. I insist you to go through Magento 2 official docs for proper knowledge

Magento Modules Overview

Modules and Areas

Module Conventions

Module Relationships

Module dependencies

Module dependency types