David Harel
Israeli computer scientist and professor at the Weizmann Institute of Science. He is the originator of Statecharts, a formal modeling language, and has made significant contributions to the fields of software engineering and systems modeling.
Timeline (last 90 days)
Statecharts were proposed by David Harel in 1987, and their core extensions include hierarchical states, orthogonal regions, history states, and guard conditions and actions.
A hierarchical state machine (HSM) is an extension of the FSM, originating from the Statecharts theory proposed by David Harel in 1987 and later becoming the theoretical basis of UML state diagrams, and it allows a state to nest sub-state machines within it.
All Facts (2)
Statecharts were proposed by David Harel in 1987, and their core extensions include hierarchical states, orthogonal regions, history states, and guard conditions and actions.
50%UnverifiedA hierarchical state machine (HSM) is an extension of the FSM, originating from the Statecharts theory proposed by David Harel in 1987 and later becoming the theoretical basis of UML state diagrams, and it allows a state to nest sub-state machines within it.
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