<s>
The	O
Portland	B-Application
Pattern	I-Application
Repository	I-Application
(	O
PPR	O
)	O
is	O
a	O
repository	O
for	O
computer	O
programming	O
software	O
design	O
patterns	O
.	O
</s>
<s>
It	O
was	O
accompanied	O
by	O
a	O
companion	O
website	O
,	O
WikiWikiWeb	B-Language
,	O
which	O
was	O
the	O
world	O
's	O
first	O
wiki	B-Protocol
.	O
</s>
<s>
The	O
repository	O
has	O
an	O
emphasis	O
on	O
Extreme	O
Programming	O
,	O
and	O
it	O
is	O
hosted	O
by	O
Cunningham	B-Language
&	I-Language
Cunningham	I-Language
(	O
C2	O
)	O
of	O
Portland	O
,	O
Oregon	O
.	O
</s>
<s>
On	O
17	O
September	O
1987	O
,	O
programmer	O
Ward	O
Cunningham	O
,	O
then	O
with	O
Tektronix	O
,	O
and	O
Apple	O
Computer	O
's	O
Kent	O
Beck	O
co-published	O
the	O
paper	O
"	O
Using	O
Pattern	O
Languages	O
for	O
Object-Oriented	B-Language
Programs	O
"	O
This	O
paper	O
,	O
about	O
software	O
design	O
patterns	O
,	O
was	O
inspired	O
by	O
Christopher	O
Alexander	O
's	O
architectural	O
concept	O
of	O
"	O
patterns	O
"	O
It	O
was	O
written	O
for	O
the	O
1987	O
OOPSLA	O
programming	O
conference	O
organized	O
by	O
the	O
Association	O
for	O
Computing	O
Machinery	O
.	O
</s>
<s>
Cunningham	B-Language
&	I-Language
Cunningham	I-Language
,	O
the	O
programming	O
consultancy	O
that	O
would	O
eventually	O
host	O
the	O
PPR	O
on	O
its	O
Internet	O
domain	O
,	O
was	O
incorporated	O
in	O
Salem	O
,	O
Oregon	O
on	O
1	O
November	O
1991	O
,	O
and	O
is	O
named	O
after	O
Ward	O
and	O
his	O
wife	O
,	O
Karen	O
R	O
.	O
Cunningham	O
,	O
a	O
mathematician	O
,	O
school	O
teacher	O
,	O
and	O
school	O
director	O
.	O
</s>
<s>
Cunningham	B-Language
&	I-Language
Cunningham	I-Language
registered	O
their	O
Internet	O
domain	O
,	O
c2.com,	O
on	O
23	O
October	O
1994	O
.	O
</s>
<s>
Ward	O
created	O
the	O
Portland	B-Application
Pattern	I-Application
Repository	I-Application
on	O
c2.com	B-Language
as	O
a	O
means	O
to	O
help	O
object-oriented	B-Language
programmers	I-Language
publish	O
their	O
computer	O
programming	O
patterns	O
by	O
submitting	O
them	O
to	O
him	O
.	O
</s>
<s>
Some	O
of	O
those	O
programmers	O
attended	O
the	O
OOPSLA	O
and	O
PLoP	B-Algorithm
conferences	O
about	O
object-oriented	B-Language
programming	I-Language
,	O
and	O
posted	O
their	O
ideas	O
on	O
the	O
PPR	O
.	O
</s>
<s>
The	O
PPR	O
is	O
accompanied	O
,	O
on	O
c2.com,	O
by	O
the	O
first	O
ever	O
wiki	B-Protocol
—	O
a	O
collection	O
of	O
reader-modifiable	O
Web	O
pages	O
—	O
which	O
is	O
called	O
WikiWikiWeb	B-Language
.	O
</s>
