RESETting Timed Machines

Heterogeneous Timed Machines

We present an algebra of discrete timed input/output automata that execute in the context of different clock granularities — timed machines — as models of systems that can be dynamically interconnected at run time in a heterogeneous context. We show how timed machines can be refined to a lower granularity of time and how timed machines with different clock granularities can be composed. We prop...

Precision Timed Machines

Precision Timed Machines

Model Checking - Timed UML State Machines and Collaborations

We describe a prototype tool, hugo/RT, that is designed to automatically verify whether the timed state machines in a UML model interact according to scenarios specified by time-annotated UML collaborations. Timed state machines are compiled into timed automata that exchange signals and operations via a network automaton. A collaboration with time constraints is translated into an observer time...

Verification of Timed Algorithms: Gurevich Abstract State Machines versus First Order Timed Logic

Deriving Test Suites for Timed Finite State Machines

This paper is devoted to the derivation of distinguishing sequences for timed Finite State Machines (FSM). Such distinguishing sequences are used when deriving a test suite for a timed FSM with the guaranteed fault coverage.