<s>
WET	B-Application
Web	I-Application
Tester	I-Application
is	O
a	O
web	O
testing	B-Application
tool	I-Application
that	O
drives	O
an	O
IE	O
Browser	O
directly	O
and	O
so	O
the	O
automated	B-Application
testing	I-Application
done	O
is	O
equivalent	O
to	O
how	O
a	O
user	O
would	O
drive	O
the	O
web	O
pages	O
.	O
</s>
<s>
WET	O
sits	O
on	O
top	O
of	O
Watir	B-Application
,	O
an	O
automated	B-Application
test	I-Application
tool	O
which	O
uses	O
the	O
Ruby	B-Language
scripting	O
language	O
.	O
</s>
<s>
WET	O
started	O
off	O
as	O
an	O
Extension	O
Toolkit	O
to	O
Watir	B-Application
,	O
a	O
framework	O
for	O
Web	O
testing	O
,	O
released	O
as	O
an	O
opensource	O
product	O
and	O
called	O
it	O
as	O
WET	O
(	O
Watir	B-Application
Extension	I-Application
Toolkit	I-Application
)	O
.	O
</s>
<s>
A	O
UI	O
Test	B-Application
automation	I-Application
is	O
conventionally	O
done	O
by	O
either	O
using	O
a	O
record	O
and	O
playback	O
technique	O
or	O
by	O
scripting	O
completely	O
.	O
</s>
<s>
Experienced	O
test	B-Application
automation	I-Application
engineers	O
follow	O
a	O
complete	O
software	O
engineer	O
process	O
and	O
treat	O
the	O
test	B-Application
automation	I-Application
effort	O
as	O
another	O
development	O
effort	O
.	O
</s>
<s>
WET	O
has	O
adopted	O
this	O
technique	O
,	O
called	O
as	O
the	O
Proxied	O
UI	O
technique	O
for	O
test	B-Application
automation	I-Application
.	O
</s>
