<s>
Smile	O
is	O
a	O
computer	O
data	O
interchange	O
format	O
based	O
on	O
JSON	B-General_Concept
.	O
</s>
<s>
It	O
can	O
also	O
be	O
considered	O
a	O
binary	O
serialization	O
of	O
the	O
generic	O
JSON	B-General_Concept
data	O
model	O
,	O
which	O
means	O
tools	O
that	O
operate	O
on	O
JSON	B-General_Concept
may	O
be	O
used	O
with	O
Smile	O
as	O
well	O
,	O
as	O
long	O
as	O
a	O
proper	O
encoder/decoder	O
exists	O
for	O
the	O
tool	O
.	O
</s>
<s>
Compared	O
to	O
JSON	B-General_Concept
,	O
Smile	O
is	O
both	O
more	O
compact	O
and	O
more	O
efficient	O
to	O
process	O
(	O
both	O
to	O
read	O
and	O
write	O
)	O
.	O
</s>
<s>
Part	O
of	O
this	O
is	O
due	O
to	O
more	O
efficient	O
binary	O
encoding	O
(	O
similar	O
to	O
BSON	B-Protocol
,	O
CBOR	B-Protocol
and	O
UBJSON	B-Protocol
)	O
,	O
but	O
an	O
additional	O
feature	O
is	O
optional	O
use	O
of	O
back	O
references	O
for	O
property	O
names	O
and	O
values	O
.	O
</s>
<s>
(	O
Java	O
)	O
supports	O
multiple	O
data	O
formats	O
for	O
serialization	O
,	O
including	O
Smile	O
,	O
JSON	B-General_Concept
,	O
XML	B-Protocol
and	O
Protocol	B-Protocol
Buffers	I-Protocol
.	O
</s>
