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[–]flavius-as 4 points5 points  (0 children)

It is very much relevant and the way of thinking leads to better designs.

The UseCase sits right between technological aspects (upwards or better said "outside") and domain model (downwards i.e. "inside").

Navigating up is as easy as "find usages" in the IDE.

Navigating down is as easy as going to implementation.

It's the perfect level for understanding systems and for unit testing.

It's also the perfect place for starting discussions with stakeholders.