Emergency Engineering and the Gambi Design Patterns

1. EMERGENCY
ENGINEERING
and
the
Carlos
Lopes
ThoughtWorks

2. DISCLAIMER

4. ALL
RIGHT

5. DEFINE
THE
FOLLOWING:

9.
ju·∙ry-­‐rig
tr.v.
ju·∙ry-­‐rigged,
ju·∙ry-­‐rig·∙ging,
ju·∙ry-­‐rigs
To
rig
or
assemble
for
temporary
emergency
use;
improvise.
jer·∙ry-­‐rig
tr.v.
jer·∙ry-­‐rigged,
jer·∙ry-­‐rig·∙ging,
jer·∙ry-­‐rigs
To
jury-­‐rig.
jer·∙ry-­‐build
tr.v.
jer·∙ry-­‐built
(-­‐blt),
jer·∙ry-­‐build·∙ing,
jer·∙ry-­‐
builds
To
build
shoddily,
flimsily,
and
cheaply.

10.
workaround
[ˈwɜːkəˌraʊnd]
n
(Electronics
&
Computer
Science
/
Computer
Science)
a
method
of
circumvenRng
or
overcoming
a
problem
in
a
computer
program
or
system

11. gam.bi.ar.ra

12. gam.bi

13. A
BIT
OF
HISTORY...

14. WHO
WAS
THE
FIRST
EVER?

15. HARD
TO
TELL,
BUT...

17. 45
BCE

18. 45
BCE

19. The
355
day
calendar
had
somehow
“slipped”
out
of
sync
with
the
seasons

21. 365
day
calendar
IT
IS!
with
an
extra
day
some<mes...

22. BUT
OF
COURSE
IT
WAS
NOT
PERFECT...

23. ONE
DAY
EVERY
128
YEARS

24. UNTIL
1582

26. POPE
GREGORY
XIII

27. DID
IT
FIX
EVERYTHING?

28. OF
COURSE
NOT...

29. IT
CAUSED
STUFF
LIKE
FEBRUARY
30TH
TO
HAPPEN...

30. SO...
MORE
FIXES!

31. • The
year
is
evenly
divisible
by
4;
• If
the
year
can
be
evenly
divided
by
100,
it
is
NOT
a
leap
year,
unless;
• The
year
is
also
evenly
divisible
by
400.
Then
it
is
a
leap
year.

32. AND
IT
WILL
STILL
NEED
SOME
TWEAKING
IN
A
FEW
THOUSAND
YEARS...

33. ANYWAYS...

34. THE
LEAP
YEAR!

35. soOware!

37. <PATTERN
NAME>
<tags>

38. flexibility
extensibility

39. flexibility
extensibility

40. UTF
Abuse

42. Bullet
Proof
reliability
user
experience

43. Dummy
(Cow’s
Dribble)

44. Dummy
(Cow’s
Dribble)

45. Dummy
(Cow’s
Dribble)
reliability
predictability
full
control

46. AND
0=0
/
OR
0=1
responsiveness
extensibility

47. Lone
Wolf
maintainability
velocity

48. Old
Times
Of
Yore
predictability
full
control

49. Just
Kill
If
stability
reliability

50. Nameless
Coding
obfuscaRon

51. String
Sushi
Man
extensibility
flexibility

53. CREDITS
hmp://desciclopedia.ws/wiki/Gambi_Design_Pamerns
hmp://thc.org/root/phun/unmaintain.html
PATTERNS
hmp://github.com/carlosaml/gambi-­‐design-­‐pamerns