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Domain knowledge is knowledge of a specific discipline or field in contrast to general (or domain-independent) knowledge. [1] The term is often used in reference to a more general discipline—for example, in describing a software engineer who has general knowledge of computer programming as well as domain knowledge about developing programs for a particular industry.
The word "domain" is also taken as a synonym of application domain. [1] Domain in the realm of software engineering commonly refers to the subject area on which the application is intended to apply. In other words, during application development, the domain is the "sphere of knowledge and activity around which the application logic revolves."
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages.
Domain-driven design (DDD) is a major software design approach, [1] focusing on modeling software to match a domain according to input from that domain's experts. [2] DDD is against the idea of having a single unified model; instead it divides a large system into bounded contexts, each of which have their own model.
Sample domain model for a health insurance plan. In software engineering, a domain model is a conceptual model of the domain that incorporates both behavior and data. [1] [2] In ontology engineering, a domain model is a formal representation of a knowledge domain with concepts, roles, datatypes, individuals, and rules, typically grounded in a description logic.
The term programming domain is mostly used when referring to domain-specific programming languages.It refers to a set of programming languages or programming environments that were written specifically for a particular domain, where domain means a broad subject for end users such as accounting or finance, or a category of program usage such as artificial intelligence or email.
As embedded domain-specific language (eDSL) [4] also known as an internal domain-specific language, is a DSL that is implemented as a library in a "host" programming language. The embedded domain-specific language leverages the syntax, semantics and runtime environment (sequencing, conditionals, iteration, functions, etc.) and adds domain ...
The Qi4j programming environment offers a way to express Role method injection into Java objects. [8] Java 8 default method on interfaces can be used to implement Roles in a typesafe way. In the above money transfer use case, for example, the Role methods in the SourceAccount and DestinationAccount enact the actual transfer.