Validating uml models and ocl constraints Free adult one on one video chat


19-Dec-2017 21:55

It can be shown that the safety properties are satisfied by the test cases examined.The Unified Modeling Language (UML) is a widely accepted standard for modeling software systems.The paper shows that central safety properties of the train system described in the well-known BART case study can be expressed with OCL.Test cases embodying central aspects of this train system can be formulated within the USE system.As a special case study, we have applied the tool to parts of the UML 1.3 metamodel and its well-formedness rules.

Also, there is generally no substantial support for constraints written in the Object Constraint Language (OCL).

Expressing constraints at the conceptual level is important for validation, management and maintenance of data.

Constraints are important as they add precision to the models, for instance by setting conditions under which an attribute is mandatory.

We handle the problematic fact that OCL is based on a three-valued logic, whereas PVS is only based on a two valued one.

The Unified Modeling Language (UML) is accepted today as an important standard for developing software.The Object Constraint Language (OCL) is the established language for the specification of properties of objects and object structures in UML models.



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