Post on 11-May-2017
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Basicconcepts
ofsoftwareengineeringand
maintenance
G.Giuliani
InternationalCentreforTheorethicalPhysics
-Trieste
Earth
System
Physics
Section
ICTP
-Earth
System
PhysicsSection
AdvancedSchoo
lon
Scientific
SoftwareDevelop
ment
Trieste,20
Feb
-2Mar
2012
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t
�Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
IsSoftwarepart
ofScience?
�WhatScience
isAbou
t�
Try
toun
derstand
Reality
�Collect
inform
ationas
numerical
values
�Build
know
ledg
eon
itwithanalysisandmod
els
�Ormix
theprevious
twopoints
�Com
puteraidedScience
�Science
ISinform
ationprocessing
�Large
compu
tation
anddata
requ
ireacompu
ter
�Softwaredevelopm
entisno
tscienceforitself
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
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resultislowered
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�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s
�The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er
�The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Scientifical
Problem
�The
Scientist
aimsto
undertandthereality
�The
Scientist
makes
mod
elsof
thereality
�The
mod
elisabu
nchof
mathequation
s�
The
calculator
helpsgetthemathdo
nesoon
er�
The
softwareistheinstructionto
getthere
�Ifthetimeto
resultislowered
bycalculator
�The
Scientist
ishapp
ywithpu
blications
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls
�WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
Software
�Softwareforscienceis...
�DataDigitalizationandStorage
�Num
erical
Algorithm
sandPackages
�Program
mingLangu
ages
andEnviron
ment
�DataVisualizationToo
ls�
WordProcessorsandPub
lishing
�Inform
ationExchang
eSystems
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
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�Ineed
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-ESP
Basic
concepts
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gineeringan
dmaintenan
ce
Scien
tificSoftw
are
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areEngineering
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ts
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needsanewsolution
�Ineed
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anew
instrument
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elto
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ent
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anew
numerical
algorithm
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anew
view
ingpoint
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�Ihave
anew
commun
ityto
sharedata
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�IsthereaGoo
dWay
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Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
needsanewsolution
�Ineed
towrite
softwareif
�Ihave
anew
instrument
�Ihave
anew
mod
elto
implem
ent
�Ihave
anew
numerical
algorithm
�Ihave
anew
view
ingpoint
tomydata
�Ihave
anew
commun
ityto
sharedata
with
�IsthereaGoo
dWay
towrite
Scientific
Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
needsanewsolution
�Ineed
towrite
softwareif
�Ihave
anew
instrument
�Ihave
anew
mod
elto
implem
ent
�Ihave
anew
numerical
algorithm
�Ihave
anew
view
ingpoint
tomydata
�Ihave
anew
commun
ityto
sharedata
with
�IsthereaGoo
dWay
towrite
Scientific
Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
needsanewsolution
�Ineed
towrite
softwareif
�Ihave
anew
instrument
�Ihave
anew
mod
elto
implem
ent
�Ihave
anew
numerical
algorithm
�Ihave
anew
view
ingpoint
tomydata
�Ihave
anew
commun
ityto
sharedata
with
�IsthereaGoo
dWay
towrite
Scientific
Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
needsanewsolution
�Ineed
towrite
softwareif
�Ihave
anew
instrument
�Ihave
anew
mod
elto
implem
ent
�Ihave
anew
numerical
algorithm
�Ihave
anew
view
ingpoint
tomydata
�Ihave
anew
commun
ityto
sharedata
with
�IsthereaGoo
dWay
towrite
Scientific
Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
MyProblem
needsanewsolution
�Ineed
towrite
softwareif
�Ihave
anew
instrument
�Ihave
anew
mod
elto
implem
ent
�Ihave
anew
numerical
algorithm
�Ihave
anew
view
ingpoint
tomydata
�Ihave
anew
commun
ityto
sharedata
with
�IsthereaGoo
dWay
towrite
Scientific
Software?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
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odycareson
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�IfIsparetime,
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terwill
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ay
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t
�The
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odyhave
�The
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owwhatthey
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�The
precisionIneed
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ethecompu
teruses
�Softwareprofession
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ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
just
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todo
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�Nob
odycareson
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getto
theansw
er,Iwill
nevershare
thiswithothers
�IfIsparetime,
Iwill
publishfaster
�The
compu
terwill
understand
anyw
ay
�Ifitworks
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t,itworks
foranyinpu
t
�The
resourcesIhave
iswhateveryb
odyhave
�The
data
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atissecond
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owwhatthey
are
�The
precisionIneed
inresultistheon
ethecompu
teruses
�Softwareprofession
alsarejust
overstim
ated
freaks
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
just
have
todo
iton
ce
�Nob
odycareson
how
Ido
getto
theansw
er,Iwill
nevershare
thiswithothers
�IfIsparetime,
Iwill
publishfaster
�The
compu
terwill
understand
anyw
ay
�Ifitworks
withthisinpu
t,itworks
foranyinpu
t
�The
resourcesIhave
iswhateveryb
odyhave
�The
data
form
atissecond
ary,Ikn
owwhatthey
are
�The
precisionIneed
inresultistheon
ethecompu
teruses
�Softwareprofession
alsarejust
overstim
ated
freaks
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
just
have
todo
iton
ce
�Nob
odycareson
how
Ido
getto
theansw
er,Iwill
nevershare
thiswithothers
�IfIsparetime,
Iwill
publishfaster
�The
compu
terwill
understand
anyw
ay
�Ifitworks
withthisinpu
t,itworks
foranyinpu
t
�The
resourcesIhave
iswhateveryb
odyhave
�The
data
form
atissecond
ary,Ikn
owwhatthey
are
�The
precisionIneed
inresultistheon
ethecompu
teruses
�Softwareprofession
alsarejust
overstim
ated
freaks
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
just
have
todo
iton
ce
�Nob
odycareson
how
Ido
getto
theansw
er,Iwill
nevershare
thiswithothers
�IfIsparetime,
Iwill
publishfaster
�The
compu
terwill
understand
anyw
ay
�Ifitworks
withthisinpu
t,itworks
foranyinpu
t
�The
resourcesIhave
iswhateveryb
odyhave
�The
data
form
atissecond
ary,Ikn
owwhatthey
are
�The
precisionIneed
inresultistheon
ethecompu
teruses
�Softwareprofession
alsarejust
overstim
ated
freaks
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
The
wrong
way
ofwriting
scientificsoftware
�Iwill
just
have
todo
iton
ce
�Nob
odycareson
how
Ido
getto
theansw
er,Iwill
nevershare
thiswithothers
�IfIsparetime,
Iwill
publishfaster
�The
compu
terwill
understand
anyw
ay
�Ifitworks
withthisinpu
t,itworks
foranyinpu
t
�The
resourcesIhave
iswhateveryb
odyhave
�The
data
form
atissecond
ary,Ikn
owwhatthey
are
�The
precisionIneed
inresultistheon
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derstand
You
row
nprog
rams
�You
canhave
external
contribu
tion
You
understand
�You
sparetimein
thelong
run:
Science
mustbereprod
ucible
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
followcoding
standard
�You
canun
derstand
You
row
nprog
rams
�Som
eone
else
canun
derstand
You
row
nprog
rams
�You
canhave
external
contribu
tion
You
understand
�You
sparetimein
thelong
run:
Science
mustbereprod
ucible
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
usearevision
controlsystem
�You
canfollow
thedevelopm
entof
theprog
ram
�You
candeveloptheprogram
inateam
�You
canrevert
themod
ification
sdo
neat
anytime
�You
cancalculateeasily
efforts
requ
ired
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
usearevision
controlsystem
�You
canfollow
thedevelopm
entof
theprog
ram
�You
candeveloptheprog
ram
inateam
�You
canrevert
themod
ification
sdo
neat
anytime
�You
cancalculateeasily
efforts
requ
ired
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
usearevision
controlsystem
�You
canfollow
thedevelopm
entof
theprog
ram
�You
candeveloptheprog
ram
inateam
�You
canrevert
themod
ification
sdo
neat
anytime
�You
cancalculateeasily
efforts
requ
ired
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
usearevision
controlsystem
�You
canfollow
thedevelopm
entof
theprog
ram
�You
candeveloptheprog
ram
inateam
�You
canrevert
themod
ification
sdo
neat
anytime
�You
cancalculateeasily
efforts
requ
ired
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
plan
testing
�You
shou
ldtest
You
rprog
ram
forvalid
andinvalid
inpu
t
�You
wantto
have
away
totest
itagainin
thefuture
�You
may
wantto
findprob
lemsandbu
gs
�You
wantsimpletoolsto
follow
prog
ram
flow
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
plan
testing
�You
shou
ldtest
You
rprog
ram
forvalid
andinvalid
inpu
t
�You
wantto
have
away
totest
itagainin
thefuture
�You
may
wantto
findprob
lemsandbu
gs
�You
wantsimpletoolsto
follow
prog
ram
flow
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
plan
testing
�You
shou
ldtest
You
rprog
ram
forvalid
andinvalid
inpu
t
�You
wantto
have
away
totest
itagainin
thefuture
�You
may
wantto
findprob
lemsandbu
gs
�You
wantsimpletoolsto
follow
prog
ram
flow
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
plan
testing
�You
shou
ldtest
You
rprog
ram
forvalid
andinvalid
inpu
t
�You
wantto
have
away
totest
itagainin
thefuture
�You
may
wantto
findprob
lemsandbu
gs
�You
wantsimpletoolsto
follow
prog
ram
flow
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Why
You
should
have
aSoftwareForge
�WhatisaCollaborativeDevelop
mentEnviron
ment?
�Web
basedcollaborationsite
�Cod
erepositoryandprojectmanagem
ent
�Cod
emaintenance
andversioning
�Docum
entation
platform
�Bug
stracking
andticketing
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Scientific
codebases
�Iswriting
from
scratchalwaysworth
thetask?
�Mix
ofpu
blic
domain,
free
softwareandcommercial
solution
s
�Com
mercial
environm
ents
andtoolsforresearch:morethe
possibleou
tcom
e,morethecommercial
�Which
policyshou
ldbeused
todevelopscientificsoftware?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Scientific
codebases
�Iswriting
from
scratchalwaysworth
thetask?
�Mix
ofpu
blic
domain,
free
softwareandcommercial
solution
s
�Com
mercial
environm
ents
andtoolsforresearch:morethe
possibleou
tcom
e,morethecommercial
�Which
policyshou
ldbeused
todevelopscientificsoftware?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Scientific
codebases
�Iswriting
from
scratchalwaysworth
thetask?
�Mix
ofpu
blic
domain,
free
softwareandcommercial
solution
s
�Com
mercial
environm
ents
andtoolsforresearch:morethe
possibleou
tcom
e,morethecommercial
�Which
policyshou
ldbeused
todevelopscientificsoftware?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Scientific
codebases
�Iswriting
from
scratchalwaysworth
thetask?
�Mix
ofpu
blic
domain,
free
softwareandcommercial
solution
s
�Com
mercial
environm
ents
andtoolsforresearch:morethe
possibleou
tcom
e,morethecommercial
�Which
policyshou
ldbeused
todevelopscientificsoftware?
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce
Scien
tificSoftw
are
Softw
areEngineering
Instrumen
ts
Thank
You
!
Thank
You
!
ICTP
-ESP
Basic
concepts
ofsoftwareen
gineeringan
dmaintenan
ce