<s>
In	O
software	O
development	O
,	O
test	B-Application
effort	I-Application
refers	O
to	O
the	O
expenses	O
for	O
(	O
still	O
to	O
come	O
)	O
tests	O
.	O
</s>
<s>
Some	O
factors	O
which	O
influence	O
test	B-Application
effort	I-Application
are	O
:	O
maturity	O
of	O
the	O
software	O
development	O
process	O
,	O
quality	O
and	O
testability	B-Application
of	O
the	O
testobject	O
,	O
test	O
infrastructure	O
,	O
skills	O
of	O
staff	O
members	O
,	O
quality	O
goals	O
and	O
test	O
strategy	O
.	O
</s>
<s>
We	O
can	O
also	O
use	O
the	O
following	O
techniques	O
for	O
estimating	O
the	O
test	B-Application
effort	I-Application
:	O
</s>
<s>
In	O
literature	O
test	B-Application
efforts	I-Application
relative	O
to	O
total	O
costs	O
are	O
between	O
20%	O
and	O
70%	O
.	O
</s>
<s>
When	O
looking	O
for	O
the	O
test	B-Application
effort	I-Application
in	O
the	O
single	O
phases	O
of	O
the	O
test	O
process	O
,	O
these	O
are	O
diversely	O
distributed	O
:	O
with	O
about	O
40%	O
for	O
test	O
specification	O
and	O
test	O
execution	O
each	O
.	O
</s>
