<s>
In	O
computing	O
,	O
What	B-Application
You	I-Application
See	I-Application
Is	I-Application
What	I-Application
You	I-Application
Mean	I-Application
(	O
WYSIWYM	B-Application
,	O
)	O
is	O
a	O
paradigm	O
for	O
editing	O
a	O
structured	O
document	O
.	O
</s>
<s>
It	O
is	O
an	O
adjunct	O
to	O
the	O
better-known	O
WYSIWYG	B-Application
(	O
What	B-Application
You	I-Application
See	I-Application
Is	I-Application
What	I-Application
You	I-Application
Get	I-Application
)	O
paradigm	O
,	O
which	O
displays	O
the	O
result	O
of	O
a	O
formatted	O
document	O
as	O
it	O
will	O
appear	O
on	O
screen	O
or	O
in	O
print	O
—	O
without	O
showing	O
the	O
descriptive	O
code	O
underneath	O
.	O
</s>
<s>
In	O
a	O
WYSIWYM	B-Application
editor	O
,	O
the	O
user	O
writes	O
the	O
contents	O
in	O
a	O
structured	O
way	O
,	O
marking	O
the	O
content	O
according	O
to	O
its	O
meaning	O
,	O
its	O
significance	O
in	O
the	O
document	O
,	O
and	O
leaves	O
its	O
final	O
appearance	O
up	O
to	O
one	O
or	O
more	O
separate	O
style	B-Language
sheets	I-Language
.	O
</s>
<s>
For	O
example	O
,	O
in	O
a	O
WYSIWYM	B-Application
document	O
,	O
one	O
would	O
manually	O
mark	O
text	O
as	O
the	O
title	O
of	O
the	O
document	O
,	O
the	O
name	O
of	O
a	O
section	O
,	O
the	O
caption	O
associated	O
with	O
a	O
figure	O
,	O
or	O
the	O
name	O
of	O
an	O
author	O
;	O
this	O
would	O
in	O
turn	O
allow	O
one	O
element	O
,	O
such	O
as	O
section	O
headings	O
,	O
to	O
be	O
rendered	O
as	O
large	O
bold	O
text	O
in	O
one	O
style	O
sheet	O
,	O
or	O
as	O
red	O
center	O
justified	O
text	O
in	O
another	O
,	O
without	O
further	O
manual	O
intervention	O
.	O
</s>
<s>
More	O
often	O
than	O
not	O
,	O
this	O
requires	O
the	O
semantic	B-Application
structure	O
of	O
the	O
document	O
to	O
be	O
decided	O
in	O
advance	O
before	O
writing	O
it	O
.	O
</s>
<s>
Unlike	O
an	O
unstructured	O
,	O
fixed-presentation	O
document	O
,	O
a	O
document	B-Application
processor	I-Application
rather	O
than	O
a	O
word	B-General_Concept
processor	I-General_Concept
must	O
be	O
used	O
for	O
WYSIWYM	B-Application
.	O
</s>
<s>
The	O
first	O
document	B-Application
processor	I-Application
which	O
articulated	O
itself	O
through	O
the	O
WYSIWYM	B-Application
term	O
was	O
LyX	B-Language
document	B-Application
processor	I-Application
,	O
although	O
similar	O
concepts	O
can	O
be	O
traced	O
back	O
to	O
earlier	O
publishing	O
systems	O
such	O
as	O
LaTeX	B-Application
,	O
TPS	O
(	O
modeled	O
on	O
pioneering	O
experiments	O
at	O
Xerox	O
PARC	O
)	O
and	O
FrameMaker	B-Device
.	O
</s>
<s>
For	O
example	O
,	O
in	O
FrameMaker	B-Device
,	O
a	O
document	O
may	O
be	O
authored	O
(	O
i.e.	O
,	O
viewed	O
and	O
edited	O
)	O
using	O
two	O
possible	O
page	O
views	O
,	O
the	O
styling	O
tags	O
(	O
called	O
"	O
formats	O
"	O
)	O
and	O
contents	O
of	O
a	O
document	O
reside	O
in	O
"	O
body	O
pages	O
"	O
,	O
while	O
structure	O
and	O
presentation	O
are	O
defined	O
by	O
"	O
master	O
pages	O
"	O
.	O
</s>
<s>
These	O
elements	O
can	O
then	O
be	O
exported	O
to	O
corresponding	O
tags	O
which	O
preserve	O
some	O
or	O
all	O
of	O
their	O
functionality	O
in	O
a	O
markup	O
language	O
such	O
as	O
XML/HTML/CSS	O
and	O
PDF	B-Application
,	O
or	O
directly	O
rendered	O
down	O
for	O
final	O
presentation	O
in	O
anything	O
from	O
PostScript	B-Language
to	O
raw	O
text	O
.	O
</s>
<s>
A	O
different	O
approach	O
to	O
the	O
WYSIWYM	B-Application
philosophy	O
is	O
taken	O
by	O
GNU	B-Application
TeXmacs	I-Application
,	O
which	O
combines	O
the	O
on-screen	O
representation	O
of	O
the	O
document	O
structure	O
with	O
an	O
almost-faithful	O
WYSIWYG	B-Application
rendering	O
.	O
</s>
<s>
Major	O
software	O
vendors	O
have	O
integrated	O
web-page	O
creation	O
features	O
into	O
their	O
popular	O
WYSIWYG	B-Application
products	O
to	O
increase	O
their	O
utility	O
.	O
</s>
<s>
Users	O
can	O
create	O
an	O
HTML	B-Language
web	O
page	O
in	O
a	O
word	B-General_Concept
processor	I-General_Concept
with	O
no	O
knowledge	O
of	O
HTML	B-Language
,	O
but	O
like	O
nearly	O
all	O
IDE	B-Application
authored	O
or	O
handwritten	O
web	O
markup	O
,	O
these	O
tools	O
 '	O
automated	O
analysis	O
of	O
the	O
source	O
format	O
rarely	O
accounts	O
for	O
a	O
distinction	O
between	O
HTML	B-Language
's	O
content	O
and	O
its	O
presentation	O
through	O
means	O
such	O
as	O
CSS	B-Language
during	O
output	O
.	O
</s>
<s>
Such	O
fixed-presentation	O
HTML	B-Language
generators	O
have	O
been	O
criticized	O
,	O
primarily	O
because	O
of	O
the	O
bloatedness	O
and	O
low	O
quality	O
of	O
their	O
code	O
,	O
and	O
there	O
are	O
voices	O
advocating	O
for	O
changes	O
to	O
the	O
WYSIWYM	B-Application
model	O
.	O
</s>
<s>
One	O
example	O
of	O
a	O
WYSIWYM	B-Application
Web	O
page	O
editor	O
is	O
WYMeditor	B-Application
.	O
</s>
<s>
In	O
this	O
editor	O
,	O
the	O
structure	O
of	O
the	O
documents	O
is	O
defined	O
by	O
the	O
class	O
attributes	O
of	O
HTML	B-Language
elements	O
.	O
</s>
<s>
Although	O
WYMeditor	B-Application
follows	O
a	O
WYSIWYM	B-Application
model	O
,	O
the	O
document	O
format	O
is	O
always	O
HTML	B-Language
,	O
so	O
the	O
new	O
structures	O
to	O
be	O
defined	O
are	O
limited	O
to	O
new	O
classes	O
,	O
and	O
the	O
final	O
document	O
will	O
always	O
be	O
built	O
by	O
applying	O
presentational	O
elements	O
to	O
these	O
classes	O
.	O
</s>
<s>
Other	O
CMSs	B-Protocol
are	O
moving	O
in	O
the	O
direction	O
of	O
providing	O
some	O
WYSIWYM	B-Application
interface	O
for	O
their	O
users	O
editing	O
content	O
.	O
</s>
<s>
Tiki	B-Protocol
Wiki	I-Protocol
CMS/Groupware	I-Protocol
version	O
7.0	O
is	O
one	O
of	O
them	O
,	O
by	O
means	O
of	O
using	O
CodeMirror	B-Language
in-browser	O
editing	O
software	O
.	O
</s>
