Exploring characteristics of UML model elements

When you work with UML models, you can use the Object Constraint Language (OCL) editor to explore the characteristics of model elements. For example, you can write an OCL statement to query a list of attributes that all the classes in a UML model own. You can also ensure that an OCL statement is syntactically valid without having to specify it in a constraint definition.

Related concepts
OCL resources and statements
Target models for OCL statements
Context elements for OCL statements
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