<s>
Shindig	B-Protocol
was	O
a	O
framework	B-Application
for	O
web-based	B-Application
applications	I-Application
.	O
</s>
<s>
It	O
is	O
an	O
open	B-Application
source	I-Application
project	O
which	O
began	O
in	O
December	O
2007	O
to	O
provide	O
a	O
reference	O
implementation	O
for	O
the	O
OpenSocial	B-Application
standard	O
,	O
but	O
was	O
retired	O
in	O
October	O
2015	O
.	O
</s>
<s>
Once	O
the	O
project	O
is	O
mature	O
,	O
an	O
installation	O
of	O
this	O
product	O
will	O
be	O
capable	O
of	O
rendering	O
OpenSocial	B-Application
gadgets	O
in	O
a	O
web	O
browser	O
.	O
</s>
<s>
In	O
the	O
announcement	O
for	O
Shindig	B-Protocol
's	O
first	O
code	O
commit	O
,	O
four	O
primary	O
features	O
of	O
Shindig	B-Protocol
were	O
cited	O
:	O
</s>
<s>
Gadget	O
Container	O
JavaScript	B-Language
—	O
core	O
JavaScript	B-Language
foundation	O
for	O
general	O
gadget	O
functionality	O
.	O
</s>
<s>
This	O
JavaScript	B-Language
manages	O
security	O
,	O
communication	O
,	O
UI	O
layout	O
,	O
and	O
feature	O
extensions	O
,	O
such	O
as	O
the	O
OpenSocial	B-Application
API	O
.	O
</s>
<s>
Gadget	O
Server	O
—	O
an	O
open	B-Application
source	I-Application
version	O
of	O
gmodules.com,	O
which	O
is	O
used	O
to	O
render	O
the	O
gadget	O
XML	O
into	O
JavaScript	B-Language
and	O
HTML	O
for	O
the	O
container	O
to	O
expose	O
via	O
the	O
container	O
JavaScript	B-Language
.	O
</s>
<s>
OpenSocial	B-Application
Container	O
JavaScript	B-Language
—	O
JavaScript	B-Language
environment	O
that	O
sits	O
on	O
top	O
of	O
the	O
Gadget	O
Container	O
JavaScript	B-Language
and	O
provides	O
OpenSocial	B-Application
specific	O
functionality	O
(	O
profiles	O
,	O
friends	O
,	O
activities	O
)	O
.	O
</s>
<s>
OpenSocial	B-Application
Gateway	O
Server	O
—	O
an	O
open	B-Application
source	I-Application
implementation	O
of	O
the	O
server	O
interface	O
to	O
container-specific	O
information	O
,	O
including	O
the	O
OpenSocial	B-Application
REST	O
APIs	O
,	O
with	O
clear	O
extension	O
points	O
so	O
others	O
can	O
connect	O
it	O
to	O
their	O
own	O
backends	O
.	O
</s>
<s>
It	O
helps	O
for	O
open	B-Application
social	I-Application
sources	O
.	O
</s>
