Dealing with multiple applications

So, we've learned the purpose of each of the projects in the ABP startup solution. It is a good starting point for a well-architected software solution. It sets up the layers properly, with a single domain layer and a single application layer (which is used by a single web application). However, in the real world, software solutions may be more complex. You may have multiple applications (on the same system) or may need to separate your domain into multiple sub-domains to reduce the complexity of each sub-domain.

DDD addresses the design of complex software solutions. One of the main purposes of separating the business logic into domain logic and application logic is to correctly organize your code base when there are multiple applications in your solution. When you have multiple applications, you have multiple application layers. Each of these layers implements the application-specific business logic of the related application, yet still...