“However, there are a couple that slip through my fingers, like Microsoft’s Visio Professional. It doesn’t exist on the Mac side and I really need it for my day job as a software quality vice president.”
A software quality vice president that has never heard of OmniGraffl? (I have been a user since Omni came out with it - so would look no further) - but a quick Google search also reveals Lucid Chart and ConceptDraw as potential alternatives.
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