UML failed because it kind of sucks, right? I like drawing dataflow when mapping integrations in IT projects out with UML flow diagrams, such as this[0]. But o

UML failed because it kind of sucks, right? I like drawing dataflow when mapping integrations in IT projects out with UML flow diagrams, such as this[0]. But other than that I have never seen anyone use them. I could never find a use. [0] https://www.researchgate.net/figure/UML-data-flow-diagram-between-the-different-parties-Note-big-arrows-mean-broadcast_fig14_318700916 https://www.researchgate.net/figure/UML-data-flow-diagram-be...