This specification defines the Object Constraint Language (OCL), version 2.4 . OCL version 2.4 is the latest version of OCL that is aligned with UML 2.4.1 and MOF 2.4.1.

This clause introduces the Object Constraint Language (OCL), a formal language used to describe expressions on UML models. These expressions typically specify invariant conditions that must hold for the system being modeled or queries over objects described in a model.

The Object Constraint Language (OCL) is a declarative language describing rules applying to Unified Modeling Language (UML) models developed at IBM and is now part of the UML standard. Initially, OCL was merely a formal specification language extension for UML. [1]

Main Goals of the Lecture Bridge the gap between practically used software specifications (UML) and formal languages Introduce into OCL (history, outline, literature) Learn how to specify semantics using OCL Learn what are interesting OCL use cases Inform what OCL tools can already be used

Nov 18, 2024 · What is OCL? The object constraint language (OCL) is a declarative ISO standard language created by IBM. OCL was developed to help relieve limitations with UML modelling and to allow the specification of more precise aspects of a system design.

Jun 18, 2012 · The Object Constraint Language (OCL) started as a complement of the UML notation with the goal to overcome the limitations of UML (and in general, any graphical notation) in terms of...

This clause introduces the Object Constraint Language (OCL), a formal language used to describe expressions on UML models. These expressions typically specify invariant conditions that must hold for the system being modeled or queries over objects described in a model.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. The context allows the access to some properties from the attached modeling element. In the case of a UML class, this means: attributes, query operations, and states (from attached state machines).

Jun 3, 2024 · My goal is to provide a detailed and simplified guide on everything about OCL, from its data types, operators, invariants, pre- and postconditions, including some examples along the way. The information provided in this guide is from trusted documentation, which is mentioned in the Section Sources. I will be using an older software called OCLE.

The Object Constraint Language (OCL) started as a com-plement of the UML notation with the goal to overcome the limitations of UML (and in general, any graphical notation) in terms of precisely spec-ifying detailed aspects of a system design.