<s>
Distributed	B-General_Concept
Object	I-General_Concept
Middleware	I-General_Concept
(	O
DOM	O
)	O
is	O
a	O
type	O
of	O
infrastructure	O
that	O
allows	O
remote	O
access	O
to	O
remote	O
objects	O
transparently	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
the	O
Remote	B-Operating_System
Procedure	I-Operating_System
Call	I-Operating_System
(	O
RPC	O
)	O
mechanism	O
.	O
</s>
<s>
Some	O
DOM	O
systems	O
also	O
enable	O
objects	O
on	O
different	O
platforms	O
to	O
interact	O
,	O
for	O
example	O
,	O
CORBA	B-Architecture
.	O
</s>
<s>
Other	O
examples	O
of	O
DOM	O
systems	O
include	O
Microsoft	O
's	O
Distributed	B-Operating_System
Component	I-Operating_System
Object	I-Operating_System
Model	I-Operating_System
(	O
DCOM	B-Operating_System
)	O
,	O
and	O
Enterprise	B-Language
JavaBeans	I-Language
(	O
EJB	B-Language
)	O
by	O
Sun	O
Microsystems	O
(	O
now	O
Oracle	B-Application
Corporation	I-Application
)	O
.	O
</s>
