g., Gurevich et al., 2005) was elaborated in Grieskamp et al. (2004).
In order to address a practical demand of Spec Explorer (SpecExplorer, 2006) users,
a limited support for scenario-oriented modeling was added to the Spec Explorer
tool through scenario actions. In Spec Explorer, the user can write models either
in AsmL (Gurevich et al., 2005) or in Spec# (Barnett et al., 2005). The need for a
general notion of composition, in order to handle other forms of scenario control and
parameter generation, has been discussed in several sources (Campbell et al., 2005a;
Veanes et al., 2005, 2007a). In this context, action machines have been proposed to
compose partial behavioral descriptions as a variation of symbolic-labeled transition
systems (Grieskamp et al., 2006).
The use of scenarios in the form of live sequence charts is discussed as a way
both to model and to program reactive systems with the Play-Engine (Harel and
Marelly, 2003).
The idea of property checking using model program composition (see Section
14.4.4) is related to the automata theoretic approach to model checking where an
automaton corresponding to the negation of the property to be checked is composed
with the model (Clarke et al., 1999; Holzmann, 2004).
Modeling objects. The formal treatment of objects is based on the notion of reserve
elements from the ASM theory (Gurevich, 1995).
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