Timed Automata with Urgent Transitions

Barbuti, R.; Tesei, Luca

In this paper we propose an extension to the formalism of timed automata by allowing urgent transitions. A urgent transition is a transition which must be taken within a fixed time interval from its enabling time. We give a set of rules formally describing the behaviour of urgent transitions and we show that, from a language theoretic point of view, the addition of urgency does not improve the expressive power of timed automata. However, from a specification point of view, the use of urgent transitions is crucial, especially in modular specification of systems.

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Titolo:	Timed Automata with Urgent Transitions
Autori:	Barbuti R. TESEI, Luca mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2001
Serie:	BRICS NOTES SERIES
Abstract:	In this paper we propose an extension to the formalism of timed automata by allowing urgent transitions. A urgent transition is a transition which must be taken within a fixed time interval from its enabling time. We give a set of rules formally describing the behaviour of urgent transitions and we show that, from a language theoretic point of view, the addition of urgency does not improve the expressive power of timed automata. However, from a specification point of view, the use of urgent transitions is crucial, especially in modular specification of systems.
Handle:	http://hdl.handle.net/11581/202409
Appare nelle tipologie:	Contributo in atto di convegno su volume

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