Domain Model Definition
The domain model should represent the vocabulary and key concepts of the problem domain and it should identify the relationships among all of the entities within the scope of the domain.
Domain model definition. Domain model is a collection of constructs that accurately models one particular business domain. Sample domain model for a health insurance plan. In agile software development a domain model describes the application domain responsible for creating a shared language between business and it.
Anything that has any impact in describing the business domain. All of that represents the domain model. Domain modeling is a way to describe and model real world entities and the relationships between them which collectively describe the problem domain space.
A domain model creates a web of interconnected objects where each object represents some meaningful individual whether as large as a corporation or as small as a single line on an order form. Domain models have also been called conceptual models the term used in the first edition of this book domain object models and analysis object models. It describes the various entities their attributes roles and relationships plus the constraints that govern the problem domain.
A domain model is a visual representation of conceptual classes or real situation objects in a domain m095 fowler96. Domain models show. The domain model is your organised and structured knowledge of the problem.
Derived from an understanding of system level requirements identifying domain entities and their relationships provides an effective basis for understanding and helps practitioners design systems for maintainability testability and incremental development. In software engineering a domain model is a conceptual model of the domain definition needed that incorporates both behaviour and data. A domain model is a graphical representation of real world ideas or flow and not software or databases.
Simply put it s a collection of entities enumerations value objects exceptions custom exceptions interfaces services etc.