Domain-specific modeling: Difference between revisions

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Domain-specific language languages can usually cover a range of abstraction levels for a particular ___domain. For example, a ___domain-specific modeling language for mobile phones could allow users to specify high-level abstractions for the [[user interface]], as well as lower-level abstractions for storing data such as phone numbers or settings. Likewise, a ___domain-specific modeling language for financial services could permit users to specify high-level abstractions for clients, as well as lower-level abstractions for implementing stock and bond trading algorithms.

== Topics ==

== Domain-specific modeling topics ==

=== Defining ___domain-specific language languages ===

To define a language, one needs a language to write the definition in. The language of a model is often called a [[metamodeling|metamodel]], hence the language for defining a modeling language is a meta-metamodel. Meta-metamodels can be divided into two groups: those that are derived from or customizations of existing languages, and those that have been developed specifically as meta-metamodels.

Derived meta-metamodels include [[Entity-relationship model|Entityentity Relationshiprelationship Diagramsdiagrams]], [[Formalformal languages]], [[Extendedextended Backus-Naur form]] (EBNF), [[Ontology language (computer science)|Ontologyontology languages]], [[XML Schemaschema]], and [[Meta-Object Facility]] (MOF). The strengths of these languages tend to be in the familiarity and standardization of the original language.

The ethos of ___domain-specific modeling favors the creation of a new language for a specific task, and so there are unsurprisingly new languages designed as meta-metamodels. The most widely used family of such languages is that of OPRR,<ref name="oprrWelke">R.J. Welke. The CASE Repository: More than another database application. In W.W. Cotterman and J.A. Senn, editors, Proceedings of 1988 INTEC Symposium Systems Analysis and Design: A Research Strategy, Atlanta, Georgia, 1988. Georgia State University. [http://www.dsmforum.org/papers/CASE_Repository.html]