On sequence diagrams, this numbering is somewhat redundant because the ordering of the messages always is determined by the order, from top to bottom, in which they appear on the diagram.

UML is used as a representation of the Java programming language. Using sample class and sequence diagrams, you can see how UML conveys unambiguous code-mapping information to developers.

Abstract: This paper shows a method for translating UML sequence diagrams to Petri nets and verifying deadlockfreeness, reachability, safety and liveness properties by using a model checker. In this ...

Unfortunately, Mermaid doesn't allow in-line style changes for individual message arrows directly through the diagram syntax. Instead, you'll need to use external CSS in a webpage context or modify ...

Additional Context Mermaid diagrams are widely used for creating flowcharts, sequence diagrams, Gantt charts, and more. Integrating this feature would significantly benefit users who rely on visual ...