<s>
A	O
stereotype	B-Language
is	O
one	O
of	O
three	O
types	O
of	O
extensibility	B-Architecture
mechanisms	I-Architecture
in	O
the	O
Unified	B-Language
Modeling	I-Language
Language	I-Language
(	O
UML	B-Language
)	O
,	O
the	O
other	O
two	O
being	O
tags	O
and	O
constraints	O
.	O
</s>
<s>
They	O
allow	O
designers	O
to	O
extend	O
the	O
vocabulary	O
of	O
UML	B-Language
in	O
order	O
to	O
create	O
new	O
model	O
elements	O
,	O
derived	O
from	O
existing	O
ones	O
,	O
but	O
that	O
have	O
specific	O
properties	O
that	O
are	O
suitable	O
for	O
a	O
particular	O
domain	O
or	O
otherwise	O
specialized	O
usage	O
.	O
</s>
<s>
The	O
nomenclature	O
is	O
derived	O
from	O
the	O
original	O
meaning	O
of	O
stereotype	B-Language
,	O
used	O
in	O
printing	O
.	O
</s>
<s>
Graphically	O
,	O
a	O
stereotype	B-Language
is	O
rendered	O
as	O
a	O
name	O
enclosed	O
by	O
guillemets	O
( «	O
»	O
or	O
,	O
if	O
guillemets	O
proper	O
are	O
unavailable	O
,	O
<< >>	O
)	O
and	O
placed	O
above	O
the	O
name	O
of	O
another	O
element	O
.	O
</s>
<s>
The	O
icon	O
image	O
may	O
even	O
replace	O
the	O
entire	O
UML	B-Language
symbol	O
.	O
</s>
<s>
For	O
instance	O
,	O
in	O
a	O
class	O
diagram	O
stereotypes	B-Language
can	O
be	O
used	O
to	O
classify	O
method	O
behavior	O
such	O
as	O
«	O
constructor»	O
and	O
«	O
getter»	O
.	O
</s>
<s>
Despite	O
its	O
appearance	O
,	O
«	O
interface»	O
is	O
not	O
a	O
stereotype	B-Language
but	O
a	O
classifier	B-Language
.	O
</s>
<s>
One	O
alternative	O
to	O
stereotypes	B-Language
,	O
suggested	O
by	O
Peter	O
Coad	O
in	O
his	O
book	O
Java	O
Modeling	O
in	O
Color	O
with	O
UML	B-Language
:	O
Enterprise	O
Components	O
and	O
Process	O
is	O
the	O
use	O
of	O
colored	O
archetypes	B-Language
.	O
</s>
<s>
The	O
archetypes	B-Language
indicated	O
by	O
different-colored	O
UML	B-Language
boxes	O
can	O
be	O
used	O
in	O
combination	O
with	O
stereotypes	B-Language
.	O
</s>
<s>
This	O
added	O
definition	O
of	O
meaning	O
indicates	O
the	O
role	O
that	O
the	O
UML	B-Language
object	O
plays	O
within	O
the	O
larger	O
software	O
system	O
.	O
</s>
<s>
From	O
version	O
2.0	O
the	O
previously	O
independent	O
tagged	O
value	O
is	O
considered	O
to	O
be	O
a	O
stereotype	B-Language
attribute	O
.	O
</s>
<s>
Each	O
stereotype	B-Language
has	O
zero	O
or	O
more	O
tag	O
definitions	O
,	O
and	O
all	O
stereotyped	O
UML	B-Language
elements	O
have	O
the	O
corresponding	O
number	O
of	O
tagged	O
values	O
.	O
</s>
<s>
In	O
UML	B-Language
,	O
become	O
is	O
a	O
keyword	O
for	O
a	O
specific	O
UML	B-Language
stereotype	B-Language
,	O
and	O
applies	O
to	O
a	O
dependency	B-Application
(	O
modeled	O
as	O
a	O
dashed	O
arrow	O
)	O
.	O
</s>
<s>
Become	O
shows	O
that	O
the	O
source	O
modeling	O
element	O
(	O
the	O
arrow	O
's	O
tail	O
)	O
is	O
transformed	O
into	O
the	O
target	O
modeling	O
element	O
(	O
the	O
arrow	O
's	O
head	O
)	O
,	O
while	O
keeping	O
some	O
sort	O
of	O
identity	O
,	O
even	O
though	O
it	O
may	O
have	O
changed	O
values	O
,	O
state	B-Application
,	O
or	O
even	O
class	O
.	O
</s>
<s>
While	O
UML	O
2.1	O
uses	O
the	O
«	O
become»	O
stereotype	B-Language
within	O
the	O
specification	O
,	O
it	O
does	O
not	O
define	O
it	O
.	O
</s>
