<s>
A	O
software	B-Application
package	I-Application
development	O
process	O
is	O
a	O
system	O
for	O
developing	O
software	B-Application
packages	I-Application
.	O
</s>
<s>
Packages	O
make	O
it	O
easier	O
to	O
reuse	O
and	O
share	O
code	O
,	O
e.g.	O
,	O
via	O
a	O
software	B-Application
repository	I-Application
.	O
</s>
<s>
In	O
this	O
context	O
,	O
a	O
package	O
is	O
a	O
collection	O
of	O
functions	O
written	O
for	O
use	O
in	O
a	O
single	O
language	O
such	O
as	O
Python	B-Language
or	O
R	B-Language
,	O
bundled	O
with	O
documentation	O
.	O
</s>
<s>
For	O
many	O
programming	O
languages	O
,	O
there	O
are	O
software	B-Application
repositories	I-Application
where	O
people	O
share	O
such	O
packages	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
Python	B-Language
package	O
combines	O
documentation	O
,	O
code	O
and	O
initial	O
set	O
up	O
and	O
possibly	O
examples	O
that	O
could	O
be	O
used	O
as	O
unit	O
tests	O
in	O
a	O
single	O
file	O
with	O
a	O
"	O
py	O
"	O
extension	O
.	O
</s>
<s>
By	O
contrast	O
,	O
an	O
R	B-Language
package	O
has	O
documentation	O
with	O
examples	O
in	O
files	O
separate	O
from	O
the	O
code	O
,	O
possibly	O
bundled	O
with	O
other	O
material	O
such	O
as	O
sample	O
data	O
sets	O
and	O
introductory	O
vignettes	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
an	O
R	B-Language
package	O
is	O
contained	O
in	O
a	O
directory	O
with	O
a	O
master	O
"	O
description	O
"	O
file	O
and	O
separate	O
subdirectories	O
for	O
documentation	O
,	O
code	O
,	O
optional	O
data	O
sets	O
suits	O
for	O
unit	O
or	O
regression	O
testing	O
,	O
and	O
perhaps	O
others	O
.	O
</s>
<s>
Routine	O
checks	O
are	O
made	O
of	O
packages	O
contributed	O
to	O
the	O
Comprehensive	O
R	B-Language
Archive	O
Network	O
(	O
CRAN	O
)	O
and	O
under	O
development	O
in	O
the	O
companion	O
open-source	O
collaborative	O
development	O
web	O
site	O
,	O
R-Forge	O
.	O
</s>
<s>
These	O
checks	O
compile	O
the	O
packages	O
repeatedly	O
on	O
different	O
platforms	O
under	O
different	O
versions	O
of	O
the	O
core	O
R	B-Language
language	I-Language
.	O
</s>
<s>
An	O
interesting	O
research	O
question	O
would	O
be	O
to	O
compare	O
the	O
quality	O
of	O
contributions	O
to	O
different	O
software	B-Application
repositories	I-Application
and	O
try	O
to	O
relate	O
that	O
to	O
features	O
of	O
the	O
language	O
and	O
accompanying	O
package	B-Application
development	I-Application
process	I-Application
.	O
</s>
