<s>
Reverse	B-Protocol
domain	I-Protocol
name	I-Protocol
notation	I-Protocol
(	O
or	O
reverse-DNS	B-Protocol
)	O
is	O
a	O
naming	O
convention	O
for	O
components	O
,	O
packages	O
,	O
types	O
or	O
file	O
names	O
used	O
by	O
a	O
programming	O
language	O
,	O
system	O
or	O
framework	O
.	O
</s>
<s>
Reverse-DNS	B-Protocol
strings	O
are	O
based	O
on	O
registered	O
domain	O
names	O
,	O
with	O
the	O
order	O
of	O
the	O
components	O
reversed	O
for	O
grouping	O
purposes	O
.	O
</s>
<s>
For	O
example	O
,	O
if	O
a	O
company	O
making	O
the	O
product	O
"	O
MyProduct	O
"	O
has	O
the	O
domain	O
name	O
example.com,	O
they	O
could	O
use	O
the	O
reverse-DNS	B-Protocol
string	O
com.example.MyProduct	O
as	O
an	O
identifier	O
for	O
that	O
product	O
.	O
</s>
<s>
Reverse-DNS	B-Protocol
names	O
are	O
a	O
simple	O
way	O
of	O
eliminating	O
namespace	O
collisions	O
,	O
since	O
any	O
domain	O
name	O
is	O
globally	O
unique	O
to	O
its	O
registered	O
owner	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
name	O
uk.ac.bris.pys.as	O
was	O
interpreted	O
as	O
a	O
host	O
named	O
as	O
within	O
the	O
UK	O
(	O
top	O
level	O
domain	O
.uk	B-Application
)	O
,	O
while	O
the	O
Internet	O
standard	O
would	O
have	O
interpreted	O
it	O
as	O
a	O
host	O
named	O
uk	O
within	O
the	O
American	O
Samoa	O
top	O
level	O
domain	O
(	O
.as	B-Library
)	O
.	O
</s>
<s>
Reverse-DNS	B-Protocol
for	O
identifier	O
strings	O
first	O
became	O
widely	O
used	O
with	O
the	O
Java	B-Device
platform	I-Device
.	O
</s>
<s>
Examples	O
of	O
systems	O
that	O
use	O
reverse-DNS	B-Protocol
notation	O
are	O
:	O
</s>
<s>
Some	O
examples	O
of	O
reverse-DNS	B-Protocol
strings	O
are	O
:	O
</s>
