<s>
Rational	O
Dynamic	O
Object	O
Oriented	O
Requirements	O
System	O
(	O
DOORS	O
)	O
(	O
formerly	O
Telelogic	B-Application
DOORS	I-Application
)	O
is	O
a	O
requirement	O
management	O
tool	O
.	O
</s>
<s>
It	O
is	O
a	O
client	O
–	O
server	O
application	O
,	O
with	O
a	O
Windows-only	O
client	O
and	O
servers	O
for	O
Linux	B-Application
,	O
Windows	O
,	O
and	O
Solaris	B-Application
.	O
</s>
<s>
Rational	B-Application
DOORS	I-Application
has	O
its	O
own	O
programming	O
language	O
called	O
DOORS	B-Language
eXtension	I-Language
Language	I-Language
(	O
DXL	O
)	O
.	O
</s>
<s>
Rational	B-Application
DOORS	I-Application
Next	O
Generation	O
is	O
now	O
developed	O
on	O
the	O
IBM	O
Jazz	O
platform	O
.	O
</s>
<s>
In	O
order	O
to	O
complete	O
its	O
functionality	O
,	O
Rational	B-Application
DOORS	I-Application
has	O
an	O
open	B-Architecture
architecture	I-Architecture
that	O
supports	O
third-party	O
plugins	O
.	O
</s>
<s>
Telelogic	B-Language
acquired	O
QSS	O
in	O
mid-2000	O
and	O
IBM	O
acquired	O
Telelogic	B-Language
in	O
2008	O
.	O
</s>
<s>
The	O
requirements	O
database	O
can	O
be	O
accessed	O
with	O
a	O
web	O
browser	O
through	O
Rational	B-Application
DOORS	I-Application
Web	O
Access	O
.	O
</s>
<s>
Can	O
be	O
integrated	O
with	O
other	O
Rational	O
tools	O
,	O
including	O
Rational	O
Team	O
Concert	O
,	O
RationalQuality	O
Manager	O
,	O
Rational	B-Application
DOORS	I-Application
Next	O
Generation	O
,	O
Rational	O
Rhapsody®	O
,	O
Jazz™	O
Reporting	O
Service	O
,	O
and	O
Rational	O
System	O
Architect	O
,	O
and	O
also	O
many	O
third-party	O
tools	O
,	O
providing	O
a	O
comprehensive	O
traceability	O
solution	O
.	O
</s>
