<s>
Cougaar	B-Language
(	O
acronym	O
of	O
Cognitive	O
Agent	B-General_Concept
Architecture	I-General_Concept
)	O
is	O
a	O
Java	B-Language
agent	B-General_Concept
architecture	I-General_Concept
.	O
</s>
<s>
Cougaar	B-Language
Software	O
Inc	O
.	O
was	O
formed	O
in	O
2001	O
.	O
</s>
<s>
DARPA	O
began	O
funding	O
projects	O
to	O
develop	O
what	O
became	O
Cougaar	B-Language
Open	O
Source	O
.	O
</s>
<s>
2000	O
DARPA	O
funds	O
the	O
Ultralog	O
program	O
to	O
extend	O
Cougaar	B-Language
security	O
,	O
scalability	O
and	O
survivability	O
for	O
global	O
battlefield	O
conditions	O
.	O
</s>
<s>
Cougaar	B-Language
agent	B-General_Concept
architecture	I-General_Concept
is	O
an	O
open	O
source	O
,	O
which	O
includes	O
infrastructure	O
and	O
core	O
services	O
.	O
</s>
<s>
Cougaar	B-Language
agent	O
abstraction	O
includes	O
several	O
integrated	O
advanced	O
services	O
,	O
such	O
as	O
:	O
</s>
<s>
Cougaar	B-Language
agent	O
running	O
on	O
a	O
node	O
Cougaar	B-Language
(	O
Java	B-Language
Virtual	O
Machine	O
)	O
,	O
which	O
itself	O
runs	O
on	O
a	O
host	O
.	O
</s>
<s>
Unlike	O
other	O
architectures	O
based	O
entirely	O
on	O
messages	O
,	O
Cougaar	B-Language
is	O
based	O
on	O
blackboard	O
plugins	O
as	O
main	O
data	O
managers	O
.	O
</s>
<s>
The	O
Cougaar	B-Language
platform	O
infrastructure	O
transforms	O
the	O
data	O
to	O
the	O
blackboard	O
in	O
inter-dealer	O
operations	O
,	O
but	O
this	O
is	O
hidden	O
from	O
the	O
developer	O
API	O
.	O
</s>
<s>
The	O
core	O
services	O
are	O
Cougaar	B-Language
component-based	O
implementation	O
,	O
covering	O
many	O
fields	O
such	O
as	O
mobility	O
of	O
agents	O
between	O
nodes	O
,	O
the	O
persistence	O
of	O
agent	O
state	O
and	O
subsequent	O
recovery	O
after	O
a	O
crash	O
,	O
a	O
transport	O
of	O
messages	O
supporting	O
multiple	O
protocols	O
,	O
etc	O
..	O
</s>
