<s>
A	O
node	O
in	O
the	O
Unified	B-Language
Modeling	I-Language
Language	I-Language
(	O
UML	B-Language
)	O
is	O
a	O
computational	O
resource	O
upon	O
which	O
UML	B-Language
artifacts	B-Language
may	O
be	O
deployed	O
for	O
execution	O
.	O
</s>
<s>
A	O
device	O
represents	O
hardware	O
devices	O
:	O
a	O
physical	O
computational	O
resource	O
with	O
processing	O
capability	O
upon	O
which	O
UML	B-Language
artifacts	B-Language
may	O
be	O
deployed	O
for	O
execution	O
.	O
</s>
<s>
An	O
execution	O
environment	O
represents	O
software	B-Application
containers	I-Application
(	O
such	O
as	O
operating	O
systems	O
,	O
JVM	O
,	O
servlet/EJB	O
containers	B-Application
,	O
application	O
servers	O
,	O
portal	O
servers	O
,	O
etc	O
.	O
)	O
</s>
<s>
This	O
is	O
a	O
node	O
that	O
offers	O
an	O
execution	O
environment	O
for	O
specific	O
types	O
of	O
components	O
that	O
are	O
deployed	O
on	O
it	O
in	O
the	O
form	O
of	O
deployable	O
artifacts	B-Language
.	O
</s>
