<s>
Crucible	B-General_Concept
is	O
a	O
collaborative	O
code	O
review	O
application	O
by	O
Australian	O
software	O
company	O
Atlassian	O
.	O
</s>
<s>
Like	O
other	O
Atlassian	O
products	O
,	O
Crucible	B-General_Concept
is	O
a	O
Web-based	O
application	O
primarily	O
aimed	O
at	O
enterprise	O
,	O
and	O
certain	O
features	O
that	O
enable	O
peer	O
review	O
of	O
a	O
codebase	O
may	O
be	O
considered	O
enterprise	B-Protocol
social	I-Protocol
software	I-Protocol
.	O
</s>
<s>
Crucible	B-General_Concept
is	O
particularly	O
tailored	O
to	O
remote	O
workers	O
,	O
and	O
facilitates	O
asynchronous	O
review	O
and	O
commenting	O
on	O
code	O
.	O
</s>
<s>
Crucible	B-General_Concept
also	O
integrates	O
with	O
popular	O
source	B-Architecture
control	I-Architecture
tools	O
,	O
such	O
as	O
Git	B-Application
and	O
Subversion	B-Application
.	O
</s>
<s>
Crucible	B-General_Concept
is	O
not	O
open	B-Application
source	I-Application
,	O
but	O
customers	O
are	O
allowed	O
to	O
view	O
and	O
modify	O
the	O
code	O
for	O
their	O
own	O
use	O
.	O
</s>
