<s>
The	O
Open	O
Document	O
Format	O
for	O
Office	O
Applications	O
,	O
commonly	O
known	O
as	O
OpenDocument	O
,	O
was	O
based	O
on	O
OpenOffice.org	B-Operating_System
XML	I-Operating_System
,	O
as	O
used	O
in	O
OpenOffice.org	B-Application
1	O
,	O
and	O
was	O
standardised	O
by	O
the	O
Organization	O
for	O
the	O
Advancement	O
of	O
Structured	O
Information	O
Standards	O
(	O
OASIS	O
)	O
consortium	O
.	O
</s>
<s>
The	O
group	O
decided	O
to	O
build	O
on	O
an	O
earlier	O
version	O
of	O
the	O
OpenOffice.org	B-Operating_System
XML	I-Operating_System
format	O
,	O
since	O
this	O
was	O
already	O
an	O
XML	O
format	O
with	O
most	O
of	O
the	O
desired	O
properties	O
,	O
and	O
had	O
been	O
in	O
use	O
since	O
2000	O
as	O
the	O
program	O
's	O
primary	O
storage	O
format	O
.	O
</s>
<s>
Note	O
,	O
however	O
,	O
that	O
OpenDocument	O
is	O
not	O
the	O
same	O
as	O
the	O
older	O
OpenOffice.org	B-Operating_System
XML	I-Operating_System
format	O
.	O
</s>
