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3. Expressions in VOCL
In this section advanced expressions are explained clearly. Firstly, we introduce the basics of navigation expressions that contains ClassifierRoles and AssociationRoles. After that bool expressions, if-then-else and let-in expressions are introduced which can be nested.Furthermore, the VOCL - to - OCL - converter is introduced. This component translates a drawn VOCL diagram into a corresponding OCL-String that is show in a dialog.