- Domain Driven Design Tacking Complexity In The Heart Of Software by Eric Evans
- Learning Domain-Driven Design: Aligning Software Architecture and Business Strategy by Vlad Khononov
An application's domain is the subject area the application addresses. The application's domain defines the ideas and concepts that influence the understanding of the application. The domain is modeled in the application by domain model objects, usually maintained under a "model" subdirectory in the source tree.
An operation offered as an interface that stands along in the model, with no encapsulated state. Also see @Service stereotype.