<s>
AS3	B-Protocol
(	O
Applicability	B-Protocol
Statement	I-Protocol
3	I-Protocol
)	O
,	O
RFC	O
4823	O
,	O
is	O
a	O
standard	O
by	O
which	O
vendor	O
applications	O
communicate	O
structured	O
business-to-business	O
data	O
over	O
the	O
Internet	O
using	O
File	O
Transfer	O
Protocol	O
(	O
FTP	O
)	O
.	O
</s>
<s>
While	O
AS2	B-Protocol
is	O
a	O
transfer	O
protocol	O
,	O
AS3	B-Protocol
is	O
a	O
message	O
standard	O
that	O
focuses	O
on	O
message	O
formatting	O
.	O
</s>
<s>
Where	O
AS2	B-Protocol
requires	O
dedicated	O
AS2	B-Protocol
server	O
and	O
client	O
to	O
send	O
messages	O
,	O
AS3	B-Protocol
is	O
flexible	O
;	O
once	O
an	O
AS3	B-Protocol
message	O
is	O
composed	O
,	O
it	O
can	O
be	O
transmitted	O
via	O
any	O
other	O
protocol	O
–	O
FTP	O
,	O
SFTP	O
,	O
HTTPS	O
,	O
and	O
more	O
–	O
as	O
long	O
as	O
both	O
the	O
sender	O
and	O
recipient	O
can	O
access	O
the	O
message	O
's	O
location	O
.	O
</s>
<s>
Also	O
unlike	O
AS2	B-Protocol
,	O
AS3	B-Protocol
is	O
a	O
push-pull	O
protocol	O
and	O
does	O
not	O
require	O
an	O
ongoing	O
connection	O
.	O
</s>
