This document discusses the hacker ethic and open source software development. It explores the principles of sharing knowledge, decentralization, and improving the world through collaboration. A key debate is presented between the "cathedral" model of closed, hierarchical development versus the "bazaar" model of open, decentralized development pioneered by Linux and open source projects. The bazaar model argues for releasing early and listening to customers to improve software quickly through transparency and many eyes on the code.

1. The
Cathedral
&
The
Bazaar

2. The
hacker
ethic
is
a
"new
way
of
life,
with
a
philosophy,
an
ethic
and
a
dream”
©
Steven
Levy

3. Knowledge
should
be
shared
with
other
people
who
can
benefit
from
it.
©
Richard
Stallman

4. Important
resources
should
be
u?lized
rather
than
wasted.
©
Richard
Stallman

5. Hacking
and
ethics
are
separate

6.
hacker
???

7. IETF
RFC
1983:
hacker
A
person
who
delights
in
having
an
inJmate
understanding
of
the
internal
workings
of
a
system.

8. According
to
the
"hacker
ethic,"
a
hack
must:
• be
safe
• not
damage
anything
• not
damage
anyone,
either
physically,
mentally
or
emoJonally
• be
funny,
at
least
to
most
of
the
people
who
experience
it

10. Principles
by
Steven
Levy
• Hands-­‐On
ImperaJve
• Sharing
• Openness
• DecentralizaJon
• World
Improvement

11. A
Cathedral
or
A
Bazaar?

12. Linus’s
law:
"given
enough
eyeballs,
all
bugs
are
shallow"

13. Release
early.
Release
oUen.
And
listen
to
your
customers.
©
Eric
Raymond

14. Plan
to
throw
one
[version]
away;
you
will,
anyhow.
©
Frederick
Brooks,
The
Mythical
Man
Month

16. Good
programmers
know
what
to
write.
Great
ones
know
what
to
rewrite
(and
reuse).
©
Eric
Raymond

17. When
you
lose
interest
in
a
program,
your
last
duty
to
it
is
to
hand
it
off
to
a
competent
successor.
©
Eric
Raymond

18. 99designs.com
-­‐
Crowdsourced
design

19. People’s
power

20. People’s
power