<s>
Radiant	B-Application
is	O
a	O
free	B-Application
software	I-Application
content	B-Protocol
management	I-Protocol
system	I-Protocol
written	O
in	O
Ruby	B-Language
created	O
and	O
designed	O
by	O
John	O
W	O
.	O
Long	O
as	O
a	O
Ruby	B-Application
on	I-Application
Rails	I-Application
web	O
application	O
.	O
</s>
<s>
Radiant	B-Application
has	O
a	O
lightweight	O
core	O
library	O
with	O
"	O
extensions	O
"	O
providing	O
additional	O
customised	O
functionality	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
use	O
MySQL	B-Application
,	O
PostgreSQL	B-Application
or	O
SQLite	B-Language
.	O
</s>
<s>
Radiant	B-Application
depends	O
,	O
like	O
every	O
Ruby	B-Application
on	I-Application
Rails	I-Application
application	O
,	O
on	O
the	O
installed	O
adapters	O
for	O
the	O
database	O
.	O
</s>
<s>
It	O
is	O
distributed	O
via	O
a	O
separate	O
download	O
or	O
installable	O
with	O
RubyGems	B-Application
.	O
</s>
<s>
Wolf	O
CMS	O
is	O
a	O
PHP	O
port	O
of	O
Radiant	B-Application
CMS	I-Application
.	O
</s>
<s>
Radiant	B-Application
projects	O
are	O
based	O
on	O
3	O
elements	O
:	O
Pages	O
,	O
Snippets	O
and	O
Layouts	O
.	O
</s>
<s>
Radiant	B-Application
content	O
is	O
organised	O
in	O
a	O
tree	O
structure	O
,	O
usually	O
arranged	O
to	O
reflect	O
the	O
actual	O
hierarchy	O
of	O
the	O
content	O
.	O
</s>
<s>
Inside	O
a	O
Page	O
,	O
Layout	O
or	O
Snippet	O
,	O
Radiant	B-Application
offers	O
a	O
special	O
macro	O
language	O
,	O
called	O
Radius	O
,	O
that	O
uses	O
XML-like	O
tags	O
.	O
</s>
<s>
Radiant	B-Application
CMS	I-Application
offers	O
tools	O
for	O
efficient	O
and	O
scalable	O
content	O
management	O
.	O
</s>
