Sequence diagrams shine when documenting parts of a system and how they interact, mapping messages and operations. They can even model conditional and divergent flows. UML, which introduced sequence diagrams, aimed to standardize graphical modeling languages in software development. Despite its rise and criticism, sequence diagrams survived as a valuable tool. MermaidChart makes sequence diagram creation simpler than older tools like Rational Rose. Read on for a brief history of UML and why sequence diagrams remain relevant today.
