<s>
In	O
information	B-General_Concept
technology	I-General_Concept
,	O
a	O
disparate	B-General_Concept
system	I-General_Concept
or	O
a	O
disparate	O
data	O
system	O
is	O
a	O
computer	B-General_Concept
data	I-General_Concept
processing	I-General_Concept
system	O
that	O
was	O
designed	O
to	O
operate	O
as	O
a	O
fundamentally	O
distinct	O
data	O
processing	O
system	O
without	O
exchanging	O
data	O
or	O
interacting	O
with	O
other	O
computer	B-General_Concept
data	I-General_Concept
processing	I-General_Concept
systems	O
.	O
</s>
<s>
Legacy	B-Device
systems	I-Device
are	O
examples	O
of	O
disparate	O
data	O
systems	O
,	O
as	O
are	O
heterogeneous	O
database	O
data	O
systems	O
.	O
</s>
<s>
A	O
disparate	B-General_Concept
system	I-General_Concept
is	O
often	O
characterized	O
as	O
an	O
information	B-Application
silo	I-Application
because	O
of	O
the	O
data	O
system	O
's	O
isolation	O
from	O
or	O
incompatibility	O
with	O
any	O
other	O
data	O
systems	O
.	O
</s>
<s>
Each	O
data	O
system	O
may	O
be	O
envisioned	O
as	O
being	O
composed	O
of	O
a	O
software	O
layer	O
or	O
applications	B-Architecture
architecture	I-Architecture
,	O
a	O
data	O
layer	O
or	O
data	B-General_Concept
architecture	I-General_Concept
,	O
and	O
a	O
data	O
processing	O
environment	O
layer	O
or	O
technical	O
architecture	O
.	O
</s>
