What is the UML analogue to the Data Flow Diagram from Structured Analysis?

Probably the closest thing is the activity diagram. It’s not quite the same; more influenced by flow chart than dfd. However: you can do some of the useful things in DFDs, e.g. ADs do support concurrency and differentiate control flow from dataflow.

More details on comparisons & differences in this question.

[fwiw, I still use DFDs: they’re simpler and more elegant in many circumstances]

hth.

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