<s>
Core	B-Architecture
architecture	I-Architecture
data	I-Architecture
model	I-Architecture
(	O
CADM	B-Architecture
)	O
in	O
enterprise	O
architecture	O
is	O
a	O
logical	B-Application
data	I-Application
model	I-Application
of	O
information	O
used	O
to	O
describe	O
and	O
build	O
architectures	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
is	O
essentially	O
a	O
common	O
database	B-Application
schema	I-Application
,	O
defined	O
within	O
the	O
US	O
Department	O
of	O
Defense	O
Architecture	O
Framework	O
DoDAF	O
.	O
</s>
<s>
It	O
was	O
initially	O
published	O
in	O
1997	O
as	O
a	O
logical	B-Application
data	I-Application
model	I-Application
for	O
architecture	O
data	O
.	O
</s>
<s>
Core	B-Architecture
architecture	I-Architecture
data	I-Architecture
model	I-Architecture
(	O
CADM	B-Architecture
)	O
is	O
designed	O
to	O
capture	O
DoDAF	O
architecture	O
information	O
in	O
a	O
standardized	O
structure	O
.	O
</s>
<s>
CADM	B-Architecture
was	O
developed	O
to	O
support	O
the	O
data	O
requirements	O
of	O
the	O
DoDAF	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
defines	O
the	O
entities	O
and	O
relationships	O
for	O
DoDAF	O
architecture	O
data	O
elements	O
that	O
enable	O
integration	O
within	O
and	O
across	O
architecture	O
descriptions	O
.	O
</s>
<s>
In	O
this	O
manner	O
,	O
the	O
CADM	B-Architecture
supports	O
the	O
exchange	O
of	O
architecture	O
information	O
among	O
mission	O
areas	O
,	O
components	O
,	O
and	O
federal	O
and	O
coalition	O
partners	O
,	O
thus	O
facilitating	O
the	O
data	O
interoperability	O
of	O
architectures	O
.	O
</s>
<s>
CADM	B-Architecture
is	O
a	O
critical	O
aspect	O
of	O
being	O
able	O
to	O
integrate	O
architectures	O
in	O
conformance	O
with	O
DoDAF	O
.	O
</s>
<s>
The	O
use	O
of	O
the	O
underlying	O
CADM	B-Architecture
faithfully	O
relates	O
common	O
objects	O
across	O
multiple	O
views	O
.	O
</s>
<s>
Adherence	O
with	O
the	O
framework	O
,	O
which	O
includes	O
conformance	O
with	O
the	O
currently	O
approved	O
version	O
of	O
CADM	B-Architecture
,	O
provides	O
both	O
a	O
common	O
approach	O
for	O
developing	O
architectures	O
and	O
a	O
basic	O
foundation	O
for	O
relating	O
architectures	O
.	O
</s>
<s>
Conformance	O
with	O
the	O
CADM	B-Architecture
ensures	O
the	O
use	O
of	O
common	O
architecture	O
data	O
elements	O
(	O
or	O
types	O
)	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
was	O
initially	O
published	O
in	O
1997	O
as	O
a	O
logical	B-Application
data	I-Application
model	I-Application
for	O
architecture	O
data	O
.	O
</s>
<s>
It	O
was	O
revised	O
in	O
1998	O
to	O
meet	O
all	O
the	O
requirements	O
of	O
the	O
C4ISR	O
Architecture	O
Framework	O
Version	O
2.0.1	O
As	O
a	O
logical	B-Application
data	I-Application
model	I-Application
,	O
the	O
initial	O
CADM	B-Architecture
provided	O
a	O
conceptual	O
view	O
of	O
how	O
architecture	O
information	O
is	O
organized	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
has	O
evolved	O
since	O
1998	O
,	O
so	O
that	O
it	O
now	O
has	O
a	O
physical	O
view	O
providing	O
the	O
data	O
types	O
,	O
abbreviated	O
physical	O
names	O
,	O
and	O
domain	O
values	O
that	O
are	O
needed	O
for	O
a	O
database	O
implementation	O
.	O
</s>
<s>
Because	O
the	O
CADM	B-Architecture
is	O
also	O
a	O
physical	B-Application
data	I-Application
model	I-Application
,	O
it	O
constitutes	O
a	O
database	O
design	O
and	O
can	O
be	O
used	O
to	O
automatically	O
generate	O
databases	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
v1.01	O
was	O
released	O
with	O
the	O
DoD	O
Architecture	O
Framework	O
v1.0	O
in	O
August	O
2003	O
.	O
</s>
<s>
This	O
document	O
addressed	O
usage	O
,	O
integrated	O
architectures	O
,	O
DoD	O
and	O
Federal	O
policies	O
,	O
value	O
of	O
architecture	O
,	O
architecture	O
measures	O
,	O
DoD	O
decision	O
support	O
processes	O
,	O
development	O
techniques	O
,	O
analytical	O
techniques	O
,	O
and	O
the	O
CADM	B-Architecture
v1.01	O
,	O
and	O
moved	O
towards	O
a	O
repository-based	O
approach	O
by	O
placing	O
emphasis	O
on	O
architecture	O
data	O
elements	O
that	O
comprise	O
architecture	O
products	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
v1.5	O
was	O
pre-released	O
with	O
the	O
DoD	O
Architecture	O
Framework	O
,	O
v1.5	O
in	O
April	O
2007	O
.	O
</s>
<s>
This	O
transitional	O
version	O
provided	O
additional	O
guidance	O
on	O
how	O
to	O
reflect	O
net-centric	O
concepts	O
within	O
architecture	O
descriptions	O
,	O
includes	O
information	O
on	O
architecture	O
data	O
management	O
and	O
federating	O
architectures	O
through	O
the	O
department	O
,	O
and	O
incorporates	O
the	O
pre-release	O
CADM	B-Architecture
v1.5	O
,	O
a	O
simplified	O
model	O
of	O
previous	O
CADM	B-Architecture
versions	O
that	O
includes	O
net-centric	O
elements	O
.	O
</s>
<s>
Pre-release	O
CADM	B-Architecture
v1.5	O
is	O
also	O
backward	O
compatible	O
with	O
previous	O
CADM	B-Architecture
versions	O
.	O
</s>
<s>
Data	O
sets	O
built	O
in	O
accordance	O
with	O
the	O
vocabulary	O
of	O
CADM	B-Architecture
v1.02/1.03	O
can	O
be	O
expressed	O
faithfully	O
and	O
completely	O
using	O
the	O
constructs	O
of	O
CADM	B-Architecture
v1.5	O
.	O
</s>
<s>
Note	O
:	O
For	O
DoDAF	O
V2.0	O
,	O
The	O
DoDAF	O
Meta-model	O
(	O
DM2	O
)	O
is	O
working	O
to	O
replace	O
the	O
core	B-Architecture
architecture	I-Architecture
data	I-Architecture
model	I-Architecture
(	O
CADM	B-Architecture
)	O
which	O
supported	O
previous	O
versions	O
of	O
the	O
DoDAF	O
.	O
</s>
<s>
CADM	B-Architecture
can	O
continue	O
to	O
be	O
used	O
in	O
support	O
of	O
architectures	O
created	O
in	O
previous	O
versions	O
of	O
DoDAF	O
.	O
</s>
<s>
The	O
major	O
elements	O
of	O
a	O
core	B-Architecture
architecture	I-Architecture
data	I-Architecture
model	I-Architecture
are	O
described	O
as	O
follows	O
:	O
</s>
<s>
Data	B-Application
model	I-Application
:	O
A	O
data	B-Application
model	I-Application
defines	O
the	O
objects	O
of	O
a	O
domain	O
,	O
their	O
inter-relationships	O
,	O
and	O
their	O
properties	O
,	O
normally	O
for	O
the	O
purpose	O
of	O
a	O
database	O
design	O
.	O
</s>
<s>
There	O
are	O
three	O
data	B-Application
model	I-Application
levels	O
,	O
from	O
highest	O
to	O
lowest	O
:	O
conceptual	O
,	O
logical	O
,	O
and	O
physical	O
.	O
</s>
<s>
Conceptual	B-Application
data	I-Application
models	I-Application
are	O
the	O
highest	O
level	O
.	O
</s>
<s>
Logical	O
models	O
are	O
more	O
formal	O
,	O
often	O
with	O
considerations	O
of	O
unique	O
data	O
representation	O
(	O
non-redundancy	O
or	O
database	B-Application
normalization	I-Application
)	O
,	O
emphasis	O
on	O
semantic	O
well-definedness	O
and	O
exclusivity	O
(	O
nonoverlapping	O
entities	O
)	O
,	O
and	O
domain-level	O
completeness	O
.	O
</s>
<s>
Logical	B-Application
data	I-Application
models	I-Application
need	O
not	O
commit	O
to	O
a	O
specific	O
Data	O
Base	O
Management	O
System	O
(	O
DBMS	O
)	O
.	O
</s>
<s>
Physical	B-Application
data	I-Application
models	I-Application
are	O
usually	O
the	O
most	O
detailed	O
and	O
the	O
level	O
sufficient	O
for	O
database	O
generation	O
.	O
</s>
<s>
The	O
DoDAF	O
incorporates	O
data	B-Application
modeling	I-Application
(	O
CADM	B-Architecture
)	O
and	O
visualization	O
aspects	O
(	O
products	O
and	O
views	O
)	O
to	O
support	O
architecture	O
analysis	O
.	O
</s>
<s>
The	O
DoDAF	O
's	O
data	B-Application
model	I-Application
,	O
CADM	B-Architecture
,	O
defines	O
architecture	O
data	O
entities	O
,	O
the	O
relationships	O
between	O
them	O
,	O
and	O
the	O
data	O
entity	O
attributes	O
,	O
essentially	O
specifying	O
the	O
“	O
grammar	O
”	O
for	O
the	O
architecture	O
community	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
is	O
a	O
necessary	O
aspect	O
of	O
the	O
architecture	O
and	O
provides	O
the	O
meaning	O
behind	O
the	O
architectural	O
visual	O
representations	O
(	O
products	O
)	O
.	O
</s>
<s>
The	O
CADM	B-Architecture
describes	O
the	O
following	O
data	B-Application
model	I-Application
levels	O
in	O
further	O
detail	O
:	O
</s>
<s>
Regardless	O
of	O
how	O
one	O
chooses	O
to	O
represent	O
the	O
architecture	O
description	O
,	O
the	O
underlying	O
data	O
(	O
CADM	B-Architecture
)	O
remains	O
consistent	O
,	O
providing	O
a	O
common	O
foundation	O
to	O
which	O
analysis	O
requirements	O
are	O
mapped	O
.	O
</s>
<s>
The	O
counterpart	O
to	O
CADM	B-Architecture
within	O
NASA	O
is	O
the	O
NASA	O
Exploration	O
Information	O
Ontology	O
Model	O
(	O
NeXIOM	O
)	O
,	O
which	O
is	O
designed	O
to	O
capture	O
and	O
expressively	O
describe	O
the	O
engineering	O
and	O
programmatic	O
data	O
that	O
drives	O
exploration	O
program	O
decisions	O
.	O
</s>
