<s>
The	O
Apache	O
Object	B-Language
Oriented	I-Language
Data	I-Language
Technology	I-Language
(	O
OODT	O
)	O
is	O
an	O
open	O
source	O
data	B-Application
management	I-Application
system	I-Application
framework	O
that	O
is	O
managed	O
by	O
the	O
Apache	O
Software	O
Foundation	O
.	O
</s>
<s>
The	O
early	O
focus	O
of	O
the	O
effort	O
was	O
on	O
information	B-General_Concept
integration	I-General_Concept
and	O
search	B-Application
using	O
XML	O
as	O
described	O
in	O
Crichton	O
et	O
al	O
.	O
</s>
<s>
After	O
deploying	O
OODT	O
to	O
the	O
Planetary	B-Application
Data	I-Application
System	I-Application
and	O
to	O
the	O
National	O
Cancer	O
Institute	O
EDRN	O
or	O
Early	O
Detection	O
Research	O
Network	O
project	O
,	O
OODT	O
in	O
2005	O
moved	O
into	O
the	O
era	O
of	O
large	O
scale	O
data	O
processing	O
and	O
management	O
via	O
NASA	O
's	O
Orbiting	O
Carbon	O
Observatory	O
(	O
OCO	O
)	O
project	O
.	O
</s>
<s>
Influenced	O
by	O
the	O
emerging	O
efforts	O
in	O
Apache	B-Language
Nutch	I-Language
and	O
Hadoop	B-Application
which	O
Mattmann	O
participated	O
in	O
,	O
OODT	O
was	O
given	O
an	O
overhaul	O
making	O
it	O
more	O
amenable	O
towards	O
Apache	O
Software	O
Foundation	O
like	O
projects	O
.	O
</s>
<s>
OODT	O
focuses	O
on	O
two	O
canonical	O
use	O
cases	O
:	O
Big	B-Application
Data	I-Application
processing	O
and	O
on	O
Information	B-General_Concept
integration	I-General_Concept
.	O
</s>
<s>
A	O
Resource	O
Manager	O
handles	O
allocation	O
of	O
Workflow	O
Tasks	O
and	O
other	O
jobs	O
to	O
underlying	O
resources	O
,	O
e.g.	O
,	O
Python	B-Language
jobs	O
go	O
to	O
nodes	O
with	O
Python	B-Language
installed	O
on	O
them	O
;	O
jobs	O
that	O
require	O
a	O
large	O
disk	O
or	O
CPU	O
are	O
properly	O
sent	O
to	O
those	O
nodes	O
that	O
fulfill	O
those	O
requirements	O
.	O
</s>
<s>
A	O
file	O
Crawler	O
automatically	O
extracts	O
metadata	O
and	O
uses	O
Apache	B-Language
Tika	I-Language
to	O
identify	O
file	O
types	O
and	O
ingest	O
the	O
associated	O
information	O
into	O
the	O
File	O
Manager	O
.	O
</s>
<s>
A	O
Set	O
of	O
RESTful	B-Protocol
APIs	I-Protocol
which	O
exposes	O
the	O
capabilities	O
of	O
File	O
Manager	O
,	O
Workflow	O
Manager	O
and	O
Resource	O
manager	O
components	O
.	O
</s>
<s>
A	O
web	O
application	O
for	O
exposing	O
services	O
form	O
the	O
underlying	O
OODT	O
product	O
/	O
workflow	O
/	O
resource	O
managing	O
Control	O
Systems	O
via	O
the	O
JAX-RS	B-Language
specification	O
.	O
</s>
<s>
At	O
this	O
stage	O
it	O
is	O
built	O
using	O
Apache	B-Language
Wicket	I-Language
components	O
.	O
</s>
<s>
OODT	O
is	O
written	O
in	O
the	O
Java	B-Language
,	O
and	O
through	O
its	O
REST	B-Protocol
API	I-Protocol
used	O
in	O
other	O
languages	O
including	O
Python	B-Language
(	O
programming	O
language	O
)	O
.	O
</s>
<s>
OODT	O
is	O
also	O
used	O
within	O
bioinformatics	O
and	O
is	O
a	O
part	O
of	O
the	O
Knowledgent	O
Big	B-Application
Data	I-Application
Platform	O
.	O
</s>
