0 + 2 - - PowerPoint PPT Presentation

0
SMART_READER_LITE
LIVE PREVIEW

0 + 2 - - PowerPoint PPT Presentation

( A )


slide-1
SLIDE 1

Intro, motivation, overview, admin

CISC836, Winter 2020 1

  • !" "
  • #$%&

'&

  • (

A B C D )

  • *+(",
  • "+

!"! #"$%&'' &'

!% %%(!

2

!%%%(!

  • #,+.

) *(%"+! ) (,' ) -!+(*"."/'( "0123

+ +

!%%%(!

  • 4

/,+0

  • 1!5'
  • 1

2

slide-2
SLIDE 2

!%%%(!

  • 5

/,+

"+

) "*

° + ° ' ° ( ° !!

) 6* ) " ) !" ) ! ) ) 7

  • "*,48
  • *398
  • ,4$$5 !""8
  • 679!""8
  • '9!""
  • "8894!""
  • 65",94!""
  • ."1:!""
  • 6(3!""
  • )":;5

) !"":;%"+ ) +<<(((;6;!<(=%>?9@A6.&

  • 9B9:
  • :9!""
  • 949!""
  • /+'+

)

  • @;9/9BB3;:!""

) B:

° 99!"" ° C+'!!D

) B!"" ) E/93:!"" ) F/?3:!"" ) (?4!""

  • /+

) G**/93:!"" ) G**/9344!"" ) F"/93:!""

  • '<=#">:!""

+,+ 7+2 ,+ =.+> ++702 7.'

  • [McCandless, www.informationisbeautiful.net/visualizations/million-lines-of-code]

!"#$ %& "'($ 6

Intro, motivation, overview, admin

CISC836, Winter 2020

+"*

) +*H*!++'%6"%" ) ;';>IH>9>J>4*"'>1>KLC

+ *

) *6"*

++("

) %'"'4;6""/9B3+6"%"

++++?,( ++

) ϕ *!6"/3; ϕ

/,+,+@,++ ,+0 +,+ 7+2 7@

?

!%%%(!

  • !%%%(!
  • 6"+

)

° A7+&11:#"!G6A+6',?6"A,4 #M6',B"+!7 ° *9 ° "(*@*"/;3 ° 5'@+N*"

+?+,+7 B

[US National Inst.

  • f Standards &

Technology]

O6""

[ZDNet12] http://www.zdnet.com/article/worldwide-cost-of-it-failure-revisited-3-trillion/

O6""

[ZDNet12]

:9/4P3*94@+N""

[BCS08] McManus, Wood-Harper. A study in project failure. British Computer Society CS. 2008 [BCS08]

slide-3
SLIDE 3

!%%%(!

  • B

6"+

) ) +

° @:7

+

° -!,,CCD+3+D" ° %; "*'Q""!+';F'A-( RA9BB;

+?+,+7 B

!%%%(!

  • 9

A7A5!;EE

G49BB!1:"6&1 H+"4*"*$** G*%"+!'O?6""" SA'%"O:!"" (('=

) **!14 ) *"$"!! ) '+

!%%%(!

  • 99

A7A5!;EE B

&H!+"*(

) * "'"!/ 3 A*!14 ) 5J"%"!'*1: ) +%+ ) G$6!+/G3+*"' ) 7 ) 8"*$

&H!+"*(%*"$"

) 6A+ "6A+"*"

&H!+"*(

) H+(,%!

S*

) K"BLDDDCFC+++CD,

#+

7

) 8!"T!"D !+J ) #*D+6" ) 8$"T!' 6 ) '%"J/0*($*2 %'3 ) #;1;0*(' ("2;1'99;

"+",

9 !%%%(!

slide-4
SLIDE 4

A7

  • Intro, motivation, overview, admin
  • 13

9BB9O4;:<#6 O;4<#6 >C"9<9

  • Intro, motivation, overview, admin

CISC836, Winter 2020

9!""8G ?& :6 "D*( $ BP*% $ 4P* (+ + *

  • #

*" # ' 7

14

=A7>+=G*>

  • !"#$ %"&'
  • (

) ) *++$ (

  • #&G#

#99:

"!; ) ),- 9:

!%%%(!

  • 9:

!%%%(!

  • 9

A7+++++

%!

) SH!9!"""*

5"

) 58?/D,8D"3

° *H'!'!' *""*!

&'

) 0!$'2+N

@+ * #" !!

slide-5
SLIDE 5

6/3+,"A

S6""'#1&,9:+?9:

!%%%(!

  • 9?

+GA7

!%%%(!

  • 9

)(&*,0

!+"H+6"!"%''K@BL

Problem Solution

benefit++; complexity++

!%%%(!

  • K@BL;1;@;!+"H+6"!"%'6";S;JG;';

#J$1"'(&"1++"*&"'"&!;"9BB;

9B

)"

./ 01 2 3

+*(%"+!**;!+:/939

4%'

  • AG6!#BB

!%%%(!

slide-6
SLIDE 6

#, ,"

9

(+ H @ H 7 H ++ 6+

1:H+" 49BB

!%%%(!

  • !%%%(!
  • /,/0

+!!+"H

) 6 ) ! ) " ) !+ )

  • key ingredients

to MDE (and engineering in general)

9!""8G ?& :6 "D*( $ BP*% $ 4P* (+ + *

  • #

*" # ' 7

#,++GG

#"'+" 16*!+'

  • !%%%(!
  • #"'"H+&'

",++

G ++

'+'H'+!/0A(&''23

A""

"'*(++/0 (&''23

A

'(!""("6!+6"

4 !%%%(!

slide-7
SLIDE 7

:

",++B

*(&''"""'('7

9; 6"/!!"3!" ; "J!"'" ; *!" 4; 6"* :; ""' 9; !/*!"3!"' ; 6"* ; !/*!"3 4; "*'

A"" A""

  • ) F'

) 0*$"2 ) I,? #"'D"

) #"*!"

) 06A$"2 ) I,? @'/*C:P* "%"+!**3

  • !%%%(!
  • (+%,

1+ "

$+'!+

@'M%-!U9B4

!+"'$"%""''

5++AU9B:

!""''!

'!AU9B:

@!'

#9B:?

F"#!

'! 9B9Q"6"9B'9B?

*!'%!"J +"*

5"U9B?

  • *

0*"" !+2

!%%%(!

  • ?

$&$$$6

  • !"

" $+ ! + (""$ 0( *+2 0( *N2

!%%%(!

  • Intro, motivation, overview,

admin

28

(+%,1+"

“The system shall do this, that, and the other thing”

  • +

@ G! ""

[B. Selic]

slide-8
SLIDE 8

7 V%F WW1 #"$ !"""A$

  • "'8<9

186" 81"'"

  • 1!6"

#

  • B

(+%,1+"B

(+

) !!'$"%" + +'!!'"'' ) &H!+"

° %6"6+ ° 6+/63 ° *+/+"63 ° 6N ° !+"A

) !"" !+"'$"%"+ H6"

6(!A(A+

16 1!

!%%%(!

  • !%%%(!
  • G,/#3"(#,

=*"".""+>

scratch.mit.edu www.rust-lang.org golang.org www.typescriptlang.org

(+ ' !6",(++*(( ++ !H(""7

9 !%%%(!

  • "

#"' *!969B

9; *!$%((' ; #+*!(' "6$+**

  • !%%%(!
slide-9
SLIDE 9

"B

A7;E8J 4$$

) C9(' ) "'''6!!+"! ) (A6?H%6'

  • !%%%(!
  • "B
  • #"' *!69B?1<1#

9; ('(<!+/13 ; !('!+!""'+'! %!""'-!/1#3 !6"+6"+% C,+@" 1 1#

  • 4

!%%%(!

  • :
  • &?&(,

7(

'"%"*(+

) '*!"

"%''

) ;';%'*!!"

!+%'++ +6"

) ;';'H6"!"

K(+LL++

!%%%(!

  • M?+;
  • *++
  • ;
  • *

* "J

*(+ +

M?+4 4

* "J * * * * * *

M?+

  • "J

* '

D D D D D D

* *

S+6"! 6+

  • &"!"

+H+ !+ #"'"" %"%! !"'X

!%%%(!

slide-10
SLIDE 10

!%%%(! CISC836, Winter 2020 ?

#,++

*++,

) A+"6*""'*+" '" ) */#3+"

(

) !+*(+ &'; ) .* *!"'"''*++ *!*!" ) H!+"/#8#8$S@3"/S1$S@&EHE3

,&++,++"

) +, *(!"' ) , %"%'*" *!*!"**(

#,++

"

) 8! ) G"/C:3(/I:3 ) @+

8(!!JD.++ !+%!!A""

!%%%(!

  • K'&H"";Y,%;9:L

!%%%(! CISC836, Winter 2020 B

#,++

.+

) '"! ) "(""6+% ) !%.'

° #++'!" ° &%6H+%' ° &(""%9Z", ° $!*'6''*"!

++"+

) '!#(<#S1$S@& ) 9'!8(EH

!%%%(!

  • 4

#,++B

*9

) '+*9$ ) (""+%'' ) "%6"

° +N++"/AB3 ° +/A91+"$B3 ° *"+/*(*+;;*&3

slide-11
SLIDE 11

!%%%(!

  • 49

#,++A

++"+N N$O * ;$O *+ ;$O *9&+& N$O

!%%%(!

  • 4

#,++#+

;D /,+0

° *A+H!+"

4D ++""

° G6%H!+"++#

D .""+

° #8#8$S@

ND ,P.M#MM#A

° #"'6%(<#8$S@ ° @''! ° 1'!9

5D +""+.+

° &"+#"' !(A/&# 3 ° 16DH'!!!!"'!"%" ' ° @"EH8''E ° 1'!4

!%%%(!

  • 4

#,++A73"

*""

) 6N$ ) H+(%&"+"+*"

!%%%(!

  • 44

#,++

.++

) ""6+

M(++

) D+D?+DCF"C+Q/4$

*+

) """ ) 6+6",*!Y,

slide-12
SLIDE 12

!%%%(!

  • 4:

/" ++2

!+(