<s>
Stochastic	B-Application
Petri	I-Application
nets	I-Application
are	O
a	O
form	O
of	O
Petri	B-Operating_System
net	I-Operating_System
where	O
the	O
transitions	O
fire	O
after	O
a	O
probabilistic	O
delay	O
determined	O
by	O
a	O
random	O
variable	O
.	O
</s>
<s>
A	O
stochastic	B-Application
Petri	I-Application
net	I-Application
is	O
a	O
five-tuple	O
SPN	O
=	O
(	O
P	O
,	O
T	O
,	O
F	O
,	O
M0	O
,	O
Λ	O
)	O
where	O
:	O
</s>
<s>
The	O
reachability	O
graph	O
of	O
stochastic	B-Application
Petri	I-Application
nets	I-Application
can	O
be	O
mapped	O
directly	O
to	O
a	O
Markov	O
process	O
.	O
</s>
