<s>
In	O
software	B-General_Concept
engineering	I-General_Concept
,	O
a	O
domain	B-Application
model	I-Application
is	O
a	O
conceptual	B-Application
model	I-Application
of	O
the	O
domain	B-General_Concept
that	O
incorporates	O
both	O
behavior	O
and	O
data	O
.	O
</s>
<s>
In	O
ontology	O
engineering	O
,	O
a	O
domain	B-Application
model	I-Application
is	O
a	O
formal	O
representation	O
of	O
a	O
knowledge	O
domain	B-General_Concept
with	O
concepts	O
,	O
roles	O
,	O
datatypes	O
,	O
individuals	O
,	O
and	O
rules	O
,	O
typically	O
grounded	O
in	O
a	O
description	B-Language
logic	I-Language
.	O
</s>
<s>
A	O
domain	B-Application
model	I-Application
is	O
a	O
system	O
of	O
abstractions	O
that	O
describes	O
selected	O
aspects	O
of	O
a	O
sphere	O
of	O
knowledge	O
,	O
influence	O
or	O
activity	O
(	O
a	O
domain	B-General_Concept
)	O
.	O
</s>
<s>
The	O
model	O
can	O
then	O
be	O
used	O
to	O
solve	O
problems	O
related	O
to	O
that	O
domain	B-General_Concept
.	O
</s>
<s>
The	O
domain	B-Application
model	I-Application
is	O
a	O
representation	O
of	O
meaningful	O
real-world	O
concepts	O
pertinent	O
to	O
the	O
domain	B-General_Concept
that	O
need	O
to	O
be	O
modeled	O
in	O
software	O
.	O
</s>
<s>
A	O
domain	B-Application
model	I-Application
leverages	O
natural	O
language	O
of	O
the	O
domain	B-General_Concept
.	O
</s>
<s>
A	O
domain	B-Application
model	I-Application
generally	O
uses	O
the	O
vocabulary	O
of	O
the	O
domain	B-General_Concept
,	O
thus	O
allowing	O
a	O
representation	O
of	O
the	O
model	O
to	O
be	O
communicated	O
to	O
non-technical	O
stakeholders	O
.	O
</s>
<s>
A	O
domain	B-Application
model	I-Application
is	O
generally	O
implemented	O
as	O
an	O
object	B-Application
model	I-Application
within	O
a	O
layer	O
that	O
uses	O
a	O
lower-level	O
layer	O
for	O
persistence	O
and	O
"	O
publishes	O
"	O
an	O
API	O
to	O
a	O
higher-level	O
layer	O
to	O
gain	O
access	O
to	O
the	O
data	O
and	O
behavior	O
of	O
the	O
model	O
.	O
</s>
<s>
In	O
the	O
Unified	B-Language
Modeling	I-Language
Language	I-Language
(	O
UML	B-Language
)	O
,	O
a	O
class	O
diagram	O
is	O
used	O
to	O
represent	O
the	O
domain	B-Application
model	I-Application
.	O
</s>
