<s>
A	O
content	B-Protocol
management	I-Protocol
system	I-Protocol
(	O
CMS	O
)	O
is	O
computer	B-Application
software	I-Application
used	O
to	O
manage	O
the	O
creation	O
and	O
modification	O
of	O
digital	O
content	O
(	O
content	B-Protocol
management	I-Protocol
)	O
.	O
</s>
<s>
A	O
CMS	O
is	O
typically	O
used	O
for	O
enterprise	B-Application
content	I-Application
management	I-Application
(	O
ECM	O
)	O
and	O
web	O
content	B-Protocol
management	I-Protocol
(	O
WCM	O
)	O
.	O
</s>
<s>
ECM	O
typically	O
supports	O
multiple	O
users	O
in	O
a	O
collaborative	B-Application
environment	I-Application
by	O
integrating	O
document	O
management	O
,	O
digital	O
asset	O
management	O
,	O
and	O
record	O
retention	O
.	O
</s>
<s>
A	O
CMS	O
typically	O
has	O
two	O
major	O
components	O
:	O
a	O
content	B-Protocol
management	I-Protocol
application	O
(	O
CMA	O
)	O
,	O
as	O
the	O
front-end	O
user	O
interface	O
that	O
allows	O
a	O
user	O
,	O
even	O
with	O
limited	O
expertise	O
,	O
to	O
add	O
,	O
modify	O
,	O
and	O
remove	O
content	O
from	O
a	O
website	O
without	O
the	O
intervention	O
of	O
a	O
webmaster	O
;	O
and	O
a	O
content	O
delivery	O
application	O
(	O
CDA	O
)	O
,	O
that	O
compiles	O
the	O
content	O
and	O
updates	O
the	O
website	O
.	O
</s>
<s>
On-premises	O
installation	O
means	O
that	O
the	O
CMS	B-Protocol
software	I-Protocol
can	O
be	O
installed	O
on	O
the	O
server	O
.	O
</s>
<s>
Notable	O
CMSs	O
which	O
can	O
be	O
installed	O
on-premises	O
are	O
Wordpress.org,	O
Drupal	B-Application
,	O
Joomla	B-Protocol
,	O
ModX	B-Application
and	O
others	O
.	O
</s>
<s>
With	O
this	O
approach	O
,	O
the	O
CMS	B-Protocol
software	I-Protocol
cannot	O
be	O
modified	O
for	O
the	O
customer	O
.	O
</s>
<s>
Examples	O
of	O
notable	O
cloud-based	O
CMSs	O
are	O
SquareSpace	B-Protocol
,	O
Contentful	O
,	O
Wordpress.com,	O
Webflow	B-General_Concept
,	O
Ghost	O
and	O
WIX	O
.	O
</s>
<s>
The	O
core	O
CMS	O
features	O
are	O
:	O
indexing	O
,	O
search	O
and	O
retrieval	O
,	O
format	O
management	O
,	O
revision	B-Architecture
control	I-Architecture
,	O
and	O
management	O
.	O
</s>
<s>
Format	O
management	O
facilitates	O
turning	O
scanned	O
paper	O
documents	O
and	O
legacy	O
electronic	O
documents	O
into	O
HTML	B-Language
or	O
PDF	O
documents	O
.	O
</s>
<s>
Revision	B-Architecture
control	I-Architecture
also	O
tracks	O
any	O
changes	O
made	O
to	O
files	O
by	O
individuals	O
.	O
</s>
<s>
There	O
are	O
also	O
component	B-Language
content	I-Language
management	I-Language
systems	I-Language
(	O
CCMS	O
)	O
,	O
which	O
are	O
CMSs	O
that	O
manage	O
content	O
at	O
a	O
modular	O
level	O
rather	O
than	O
as	O
pages	O
or	O
articles	O
.	O
</s>
<s>
Based	O
on	O
a	O
survey	O
,	O
the	O
most	O
widely	O
used	O
content	B-Protocol
management	I-Protocol
system	I-Protocol
is	O
WordPress	B-Application
,	O
used	O
by	O
42.8	O
%	O
of	O
the	O
top	O
10	O
million	O
websites	O
as	O
of	O
October	O
2021	O
.	O
</s>
<s>
(	O
although	O
,	O
per	O
definition	O
,	O
it	O
is	O
a	O
blog	O
system/website	O
generator	O
,	O
not	O
a	O
fully-fledged	O
content	B-Protocol
management	I-Protocol
system	I-Protocol
)	O
,	O
followed	O
by	O
Shopify	O
and	O
Joomla	B-Protocol
.	O
</s>
