expressionbased
Expressionbased is a descriptive term used to categorize software design approaches and systems in which computation, configuration, or data derivation is defined primarily through expressions rather than imperative statements. An expression is a syntactic construct that yields a value when evaluated, and in expressionbased designs these values drive program behavior, configuration, or rendered output.
Uses and contexts include several domains. In rule engines, business logic is expressed as boolean or computational
Advantages of expressionbased approaches often include more concise code, easier reasoning about results, and potential for
History and reception of the term are mixed, as it is not tied to a single formal
See also: Declarative programming, Rule engine, Templating language, Functional reactive programming, Expression language.