Comment by haolez

There are some diagrams that I've more useful than others. My favorites:

- Sequence Diagram: great for understanding distributed workflows

- State Diagram: state machines are wonderful tools and having a standard for representing them is a win, IMHO

- Parametric Diagram[0] (SysML): feels like Class Diagrams for functional programming

[0] https://sysml.org/sysml-faq/what-is-parametric-diagram.html