Unable to create abstract attributes, only methods

Newbie here, sorry if I missed something obvious:

I’ve managed to create an abstract class with abstract methods correctly. But when I attempt to make an abstract attribute on the same class, the “Abstract” checkbox is greyed out in the “Attribute Specification” window so I can’t seem to do it.

Note that I have made the class abstract by selecting “Model Element Properties” > “Abstract” and this allows me to create abstract methods as expected, just not abstract properties.

What am I doing wrong?

Hi south-summit,

You can assign stereotype <<Property>> to the attribute.

Then you will able to set Abstract.

Best Regards,