<s>
In	O
Western	O
ecclesiastical	O
architecture	O
,	O
a	O
cathedral	B-Application
diagram	I-Application
is	O
a	O
floor	B-Application
plan	I-Application
showing	O
the	O
sections	O
of	O
walls	O
and	O
piers	O
,	O
giving	O
an	O
idea	O
of	O
the	O
profiles	O
of	O
their	O
columns	O
and	O
ribbing	O
.	O
</s>
<s>
By	O
convention	O
,	O
ecclesiastical	O
floorplans	B-Application
are	O
shown	O
map-fashion	O
,	O
with	O
north	O
to	O
the	O
top	O
and	O
the	O
liturgical	B-Application
east	I-Application
end	I-Application
to	O
the	O
right	O
.	O
</s>
<s>
Many	O
abbey	O
churches	O
have	O
floorplans	B-Application
that	O
are	O
comparable	O
to	O
cathedrals	O
,	O
though	O
sometimes	O
with	O
more	O
emphasis	O
on	O
the	O
sanctuary	B-Application
and	O
choir	O
spaces	O
that	O
are	O
reserved	O
for	O
the	O
religious	O
community	O
.	O
</s>
<s>
Cathedral	B-Application
floorplans	I-Application
are	O
designed	O
to	O
provide	O
for	O
the	O
liturgical	O
rites	O
of	O
the	O
church	O
.	O
</s>
<s>
This	O
included	O
an	O
entry	O
on	O
one	O
end	O
of	O
a	O
long	O
narrow	O
,	O
covered	O
space	O
with	O
a	O
raised	O
dais	B-Protocol
at	O
the	O
other	O
end	O
.	O
</s>
<s>
Upon	O
the	O
dais	B-Protocol
,	O
public	O
officials	O
would	O
hear	O
legal	O
cases	O
,	O
or	O
expound	O
on	O
some	O
matter	O
of	O
public	O
interest	O
.	O
</s>
<s>
Aisle	B-Application
:	O
A	O
pair	O
of	O
walkways	O
that	O
are	O
parallel	O
to	O
the	O
primary	O
public	O
spaces	O
in	O
the	O
church	O
,	O
e.g.	O
</s>
<s>
The	O
aisles	B-Application
are	O
separated	O
from	O
the	O
public	O
areas	O
by	O
pillars	O
supporting	O
the	O
upper	O
walls	O
,	O
called	O
an	O
arcade	O
.	O
</s>
<s>
Apse	B-Language
:	O
The	O
end	O
of	O
the	O
building	O
opposite	O
the	O
main	O
entry	O
.	O
</s>
<s>
A	O
buttress	O
may	O
be	O
visible	O
as	O
in	O
the	O
Gothic	O
flying	O
buttress	O
,	O
or	O
it	O
may	O
be	O
hidden	O
in	O
the	O
complex	O
of	O
aisles	B-Application
and	O
galleries	O
.	O
</s>
<s>
Crypt	B-Algorithm
:	O
Usually	O
the	O
below	O
ground	O
foundation	O
.	O
</s>
<s>
Facade	B-Application
:	O
The	O
outside	O
of	O
the	O
church	O
,	O
where	O
the	O
main	O
doors	O
are	O
located	O
.	O
</s>
<s>
It	O
is	O
generally	O
the	O
largest	O
space	O
,	O
and	O
located	O
between	O
the	O
narthex	O
and	O
sanctuary	B-Application
.	O
</s>
<s>
Radiating	O
Chapels	O
:	O
Located	O
around	O
the	O
Apse	B-Language
of	O
the	O
church	O
,	O
accessible	O
from	O
the	O
Ambulatory	O
.	O
</s>
<s>
Sanctuary	B-Application
:	O
An	O
elevated	O
platform	O
that	O
contains	O
the	O
main	O
altar	O
and	O
associated	O
liturgical	O
elements	O
that	O
is	O
restricted	O
for	O
ceremonial	O
use	O
by	O
the	O
clergy	O
,	O
often	O
fenced	O
from	O
adjoining	O
spaces	O
.	O
</s>
<s>
It	O
is	O
centered	O
on	O
the	O
main	O
east	O
–	O
west	O
axis	O
within	O
the	O
east	O
end	O
and	O
generally	O
located	O
within	O
the	O
choir	O
or	O
the	O
apse	B-Language
.	O
</s>
