Harel statecharts

Harel statecharts are a visual modeling tool used to represent complex systems and their behavior. They extend traditional state diagrams by allowing states to contain nested states and transitions, illustrating how a system moves between different conditions. Think of them as a detailed map of a system's possible states and how it transitions from one to another in response to events. This approach helps designers clearly visualize and manage complex behaviors, making it easier to design, analyze, and communicate how systems operate in various scenarios.