- Domain model
A domain model in problem solving and software engineering can be thought of as a conceptual model of a domain of interest (often referred to as a problem domain) which describes the various entities, their attributes, roles and relationships, plus the constraints that govern the integrity of the model elements comprising that problem domain.
The domain model is created in order to represent the vocabulary and key concepts of the problem domain. The domain model also identifies the relationships among all the entities within the scope of the problem domain, and commonly identifies their attributes. A domain model that encapsulates methods within the entities is more properly associated with object oriented models. The domain model provides a structural view of the domain that can be complemented by other dynamic views, such as Use Case models.
An important advantage of a domain model is that it describes and constrains the scope of the problem domain. The domain model can be effectively used to verify and validate the understanding of the problem domain among various stakeholders. It is especially helpful as a communication tool and a focusing point both amongst the different members of the business team as well as between the technical and business teams.
A well-thought domain model serves as a clear depiction of the conceptual fabric of the problem domain and therefore is invaluable to ensure all stakeholders are aligned in the scope and meaning of the concepts indigenous to the problem domain. A high fidelity domain model can also serve as an essential input to solution implementation within a software development cycle since the model elements comprising the problem domain can serve as key inputs to code construction, whether that construction is achieved manually or through automated code generation approaches. It is important, however, not to compromise the richness and clarity of the business meaning depicted in the domain model by expressing it directly in a form influenced by design or implementation concerns.
The domain model is one of the central artifacts in the project development approach called Feature Driven Development (FDD).
In Domain-driven design, the domain model (Entities and Value objects) is a part of the Domain layer which often also includes other concepts such as Services. It is considered an effective model for software development.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Anemic Domain Model — The Anemic Domain Model is a pejorative term used to describe the use of a domain model where the business logic is implemented outside the domain objects. This pattern was first described by Martin Fowler who considers the practice an anti… … Wikipedia
Domain-driven design — (DDD) is an approach to developing software for complex needs by deeply connecting the implementation to an evolving model of the core business concepts. The premise of domain driven design is the following: Placing the project s primary focus … Wikipedia
Domain engineering — Domain engineering, also called product line engineering, is the entire process of reusing domain knowledge in the production of new software systems. It is a key concept in systematic software reuse. A key idea in systematic software reuse is… … Wikipedia
Domain — may refer to: General Territory (administrative division), a non sovereign geographic area which has come under the authority of another government Public domain, a body of works and knowledge without proprietary interest Eminent domain, the… … Wikipedia
Domain-Driven Design — (DDD) ist ein von Eric Evans in seinem Buch Domain Driven Design geprägter Begriff für eine Anwendungsdomänen getriebene Herangehensweise an das Design komplexer objektorientierter Software. Domain Driven Design ist nicht nur eine Technik oder … Deutsch Wikipedia
Model–view–presenter — (MVP) is a derivative of the model–view–controller (MVC) software pattern, also used mostly for building user interfaces. In MVP the presenter assumes the functionality of the middle man (played by the controller in MVC). Additionally, the view… … Wikipedia
Domain layer — The domain layer is a software concept.It is one of the layers in a typical multilayered architecture for information systems.One of the best and most well known sources of information about how to use a domain layer can be found in Eric Evans s… … Wikipedia
Domain-specific multimodeling — Domain specific multimodeling is a software development paradigm where each view is made explicit as a separate domain specific language (DSL). Successful development of a modern enterprise system requires the convergence of multiple views.… … Wikipedia
Model-driven engineering — (MDE) is a software development methodology which focuses on creating and exploiting domain models (that is, abstract representations of the knowledge and activities that govern a particular application domain), rather than on the computing (or… … Wikipedia
Domain theory — is a branch of mathematics that studies special kinds of partially ordered sets (posets) commonly called domains. Consequently, domain theory can be considered as a branch of order theory. The field has major applications in computer science,… … Wikipedia