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Adam Hendra Brata
Teknik Informatika FILKOM UB
Semester Genap 2015/2016
TUJUAN PERKULIAHAN
• Memahami pemodelan perancangan dengan pendekatan
terstruktur
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
AGENDA PERKULIAHAN
• Pemodelan perancangan terstruktur
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
METODE PEMODELAN PERANCANGAN TERSTRUKTUR
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Functional Design
• Berorientasi pada fungsi
• Structured Design (Constantin & Yourdon, 1979), Step wise
Refinement (Wirth, 1971, 1976), Jackson Structured
Programming (Jackson, 1975), dll.
FUNCTIONAL DESIGN APPROACHES
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Transform Mapping - langkah perancangan untuk tipe DFD transform flow• Incoming flow : aliran/jalur informasi eksternal masuk ke
sistem untuk ditransformasikan menjadi informasi internal• Transform center : pusat transformasi di dalam sistem yang
akan mentriger informasi keluar dari system• Outgoing flow : aliran/jalur informasi internal keluar dari
sistem menjadi informasi eksternal
• Transaction Mapping - langkah perancangan untuk tipe DFD transaction flow• Transaction : data tunggal yang mentriger satu atau beberapa
aliran data• Transaction center : penghubung antara aliran-aliran data
hasil pentrigeran dengan data trigernya• Action path : aliran/jalur informasi hasil triger
FUNCTIONAL DESIGN APPROACHES
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Transform Flow
• Transaction Flow
a
b
cd
f
g
e
h
incoming
flow
transform
center
outgoing
flow
a c
b
d e
f
g
h
transaction
transaction
center
action path
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Langkah-langkah Transform Mapping
• Incoming flow : aliran/jalur informasi eksternal masuk ke
• Review dan refine DFD sampai ke level paling bawah
• Tentukan apakah DFD tsb. memiliki karakteristik tipe
transform flow atau transaction flow
• Tentukan batas antara incoming flow, transform center dan
outgoing flow
• Bangun first level factoring
• Bangun second level factoring
• Refine first iteration
• Contoh Transform Mapping : SafeHome Security Software
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• DFD Level 1
1*
Interact
with user
2*
Configure
system
3
Activate
/deactivate
sytem
4
Display
messages
and status
5*
Process
password
6*
Monitor
sensors
configuration
information
user commands
and dataControl
panel
Sensors
Control
panel
display
Alarm
Telephone line
configure
request
configuration
data
start stop
password
valid ID msg.
A/D msg.
configuration
data
configuration
data
sensor status
sensor
information
alarm type
telephone number tones
display
information
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• DFD Level 2 : Monitor sensors
6.3*
Format for
display
6.2*
Assess
against setup
6.4
Generate
alarm
signal
6.1
Read
sensors
6.5*
Dial phone
configuration
information
sensor
information
sensor status
sensor ID, type
configuration
data
alarm type
telephone number
tones
telephone
number
alarm data
sensor ID, type,
location
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• DFD Level 3 : Monitor sensors
1
Read
sensors
configuration
information
sensor status
2
Acquire
response
info
3
Establish
alarm
conditions
8
Generate
pulses to
line
4
Select
phone
number
5
Set up
conn. to
phone net
9
Generate
display6
Format
display
7
Generate
alarm
signal
sensor ID, type
configuration
data
sensor
information
alarm type
telephone number
tones
formated ID,
type, location
alarm data
alarm cond.
code, sensor ID,
timing
information
list of
numbers
telephone
number
tone ready
telephone
number
sensor ID, type,
location
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• First level factoring : Monitor sensors
configuration
information
8
9
6
7
1
2
3
4
5
Monitor
sensors
executive
Sensor input
controller
Alarm conditions
controller
Alarm output
controller
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Second level factoring : Monitor sensors
Monitor
sensors
executive
Sensor input
controller
Alarm conditions
controller
Alarm output
controller
Format
display
Generate
alarm signal
Set up conn. to
phone net
Generate
display
Generate
pulses to line
Establish alarm
conditions
Select phone
numberAcquire
response info
Read sensors
TRANSFORM MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Refine first iteration : Monitor sensors
• Incoming controller dihapus : data input tunggal, cukup sederhana
• Transform controller dihapus dan digabungdalam satu modul : ada penurunan tingkat kohesifitas
• Format display dan generate display digabung : sederhana
Monitor
sensors
executive
Establish alarm
conditionsAlarm output
controller
Produce
display
Generate
alarm signal
Set up conn. to
phone net
Generate
pulses to line
Acquire
response info
Read sensors
TRANSACTION MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Langkah-langkah Transaction Mapping
• Review dan refine DFD sampai ke level paling bawah
• Tentukan apakah DFD tsb. memiliki karakteristik tipe
transform flow atau transaction flow
• Tentukan batas antara incoming path/transaction,
transaction center dan action path
• Bangun first level factoring
• Bangun second level factoring
• Refine first iteration
• Contoh Transaction Mapping : SafeHome Security Software
TRANSACTION MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Transaction Structuring
r
s
a
b
d
p
q
Transaction
control
b
a
d
c1
q r s
p
DispatcherReception
path
TRANSACTION MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• DFD Level 2 : User Interaction
3
Read
password
2
Invoke
command
processing
4
Compare
password
w/ file
1
Read user
command
configuration
information
5
Activate/d
eactivate
system
6
Display
message
& status
7
Read
system
data
8
Build
configurat
ion file
command
type
start stop
user commands
and data
configure
request
password
raw
configuration
dataconfiguration
data
A/D msg.
configuration
data
configuration
data
four digits display
informationvalid ID msg.
TRANSACTION MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• First / Second level factoring: User Interaction
User
interaction
executive
Read user
command
System
configuration
controller
Invoke
command
processing
Activate
/deactivate
system
Password
processing
controller
Read system dataBuild
configuration fileRead password
Compare
password w/
file
Display
messages &
status
TRANSACTION MAPPING
T E K N I K I N FO R M AT I K A F I L KO M U B
S E M E S T E R G E N A P 2 0 1 5 / 2 01 6
APS
• Arsitektur SafeHome Security Software
User
interaction
executive
Read user
command
System
configuration
controller
Invoke
command
processing
Activate
/deactivate
system
Password
processing
controller
Read system dataBuild
configuration fileRead password
Compare
password w/
file
Display
messages &
status
SafeHome
Security
Monitor
sensors
executive
Establish alarm
conditions
Alarm output
controller
Produce
display
Generate alarm
signal
Set up conn. to
phone net
Generate
pulses to line
Acquire
response info
Read sensors
TERIMAKASIH V^^
To Infinity
and Beyond !
APS
