Activity diagrams are a type of UML diagram that depict the flow of control and data among activities. An activity is a unit of work that can be performed by a system, a user, or another actor ...

The Systems Biology Graphical Notation (SBGN) is a graphical representation crafted over several years by a community of biochemists, modellers and computer scientists.

UML 2.5 Activity Diagram, being the latest version released in 2015, faces some serious problems inherent in UML itself. UML diagrams lack precise mathematical semantics which leads to ambiguities in ...