<s>
A	O
personalization	B-Protocol
management	I-Protocol
system	I-Protocol
(	O
PMS	O
)	O
is	O
an	O
integrated	O
software	O
solution	O
that	O
enables	O
users	O
in	O
an	O
organization	O
to	O
manage	O
and	O
deliver	O
personalized	O
messages	O
,	O
campaigns	O
,	O
and	O
interactive	O
experiences	O
to	O
consumers	O
across	O
different	O
communications	O
channels	O
and	O
devices	O
.	O
</s>
<s>
Previously	O
,	O
these	O
services	O
were	O
typically	O
included	O
under	O
the	O
umbrella	O
of	O
CMS	B-Protocol
or	O
CRM	O
solutions	O
,	O
which	O
did	O
not	O
adequately	O
encapsulate	O
the	O
nuances	O
of	O
this	O
new	O
category	O
.	O
</s>
<s>
As	O
the	O
internet	O
and	O
digital	O
marketing	O
continued	O
to	O
grow	O
,	O
the	O
need	O
for	O
efficient	O
and	O
effective	O
content	B-Protocol
management	I-Protocol
systems	I-Protocol
(	O
CMS	B-Protocol
)	O
became	O
apparent	O
.	O
</s>
<s>
One	O
of	O
the	O
main	O
challenges	O
with	O
traditional	O
CMS	B-Protocol
systems	I-Protocol
was	O
that	O
they	O
were	O
designed	O
for	O
the	O
web	O
,	O
which	O
often	O
meant	O
that	O
content	O
had	O
to	O
be	O
created	O
multiple	O
times	O
to	O
be	O
delivered	O
across	O
multiple	O
devices	O
.	O
</s>
<s>
To	O
address	O
this	O
issue	O
,	O
the	O
concept	O
of	O
headless	B-Protocol
CMS	I-Protocol
was	O
introduced	O
.	O
</s>
<s>
A	O
headless	B-Protocol
CMS	I-Protocol
is	O
a	O
content	B-Protocol
management	I-Protocol
system	I-Protocol
that	O
separates	O
the	O
backend	O
(	O
where	O
content	O
is	O
stored	O
and	O
served	O
)	O
from	O
the	O
frontend	O
(	O
where	O
content	O
is	O
displayed	O
to	O
the	O
user	O
)	O
.	O
</s>
<s>
Together	O
,	O
these	O
capabilities	O
led	O
to	O
the	O
emergence	O
of	O
a	O
specialized	O
category	O
known	O
as	O
a	O
Personalization	B-Protocol
Management	I-Protocol
System	I-Protocol
(	O
PMS	O
)	O
.	O
</s>
<s>
Personalization	B-Protocol
management	I-Protocol
systems	I-Protocol
typically	O
offer	O
a	O
range	O
of	O
features	O
to	O
manage	O
and	O
deliver	O
personalized	O
messages	O
,	O
campaigns	O
,	O
and	O
experiences	O
.	O
</s>
<s>
Personalization	B-Protocol
management	I-Protocol
systems	I-Protocol
are	O
available	O
as	O
both	O
on-premises	B-General_Concept
and	O
cloud-based	B-Architecture
solutions	O
.	O
</s>
<s>
On-premises	B-General_Concept
solutions	O
offer	O
more	O
control	O
and	O
customization	O
.	O
</s>
<s>
Yet	O
,	O
cloud-based	B-Architecture
(	O
SaaS	B-Architecture
)	O
solutions	O
are	O
more	O
common	O
due	O
to	O
their	O
lower	O
costs	O
and	O
ease	O
of	O
management	O
.	O
</s>
