<s>
BioTapestry	B-Language
is	O
an	O
open	B-Application
source	I-Application
software	I-Application
application	O
for	O
modeling	O
and	O
visualizing	B-Application
gene	O
regulatory	O
networks	O
(	O
GRNs	O
)	O
.	O
</s>
<s>
BioTapestry	B-Language
was	O
created	O
at	O
the	O
in	O
Seattle	O
,	O
in	O
collaboration	O
with	O
the	O
at	O
the	O
.	O
</s>
<s>
BioTapestry	B-Language
was	O
initially	O
made	O
public	O
in	O
late	O
2003	O
as	O
a	O
web-based	O
,	O
read-only	O
,	O
with	O
the	O
first	O
fully	O
functional	O
editor	O
released	O
in	O
August	O
2004	O
(	O
v0.94.1	O
)	O
.	O
</s>
<s>
Development	O
work	O
on	O
BioTapestry	B-Language
is	O
ongoing	O
.	O
</s>
<s>
BioTapestry	B-Language
is	O
an	O
interactive	O
tool	O
for	O
modeling	O
and	O
visualizing	B-Application
gene	O
regulatory	O
networks	O
.	O
</s>
<s>
BioTapestry	B-Language
can	O
accept	O
network	O
definitions	O
via	O
the	O
Gaggle	O
framework	O
.	O
</s>
<s>
BioTapestry	B-Language
uses	O
orthogonal-directed	O
hyperlinks	O
and	O
a	O
hierarchical	O
presentation	O
of	O
models	O
.	O
</s>
<s>
BioTapestry	B-Language
can	O
create	O
Systems	O
Biology	O
Markup	O
Language	O
files	O
for	O
a	O
subset	O
of	O
networks	O
.	O
</s>
<s>
The	O
BioTapestry	B-Language
home	O
page	O
has	O
links	O
to	O
several	O
tutorials	O
for	O
using	O
the	O
software	O
.	O
</s>
