The Object Constraint Language (OCL) is a declarative language for describing rules that apply to Unified Modeling Language (UML) models developed at IBM and now part of the UML standard. Initially, OCL was only a formal specification language extension to UML. OCL may now be used with any Meta-Object Facility (MOF) Object Management Group (OMG) meta-model, including UML. The Object Constraint Language is a precise text language that provides constraint and object query expressions on any MOF model or meta-model that cannot otherwise be expressed by diagrammatic notation. OCL is a key component of the new OMG standard recommendation for transforming models, the Queries/Views/Transformations (QVT) specification.
Read more about Object Constraint Language: Description, Alternatives
Famous quotes containing the words object, constraint and/or language:
“Confusion of sign and object is original sin coeval with the word.”
—Willard Van Orman Quine (b. 1908)
“In America a woman loses her independence for ever in the bonds of matrimony. While there is less constraint on girls there than anywhere else, a wife submits to stricter obligations. For the former, her father’s house is a home of freedom and pleasure; for the latter, her husband’s is almost a cloister.”
—Alexis de Tocqueville (1805–1859)
“They who in folly or mere greed
Enslaved religion, markets, laws,
Borrow our language now and bid
Us to speak up in freedom’s cause.”
—Cecil Day Lewis (1904–1972)