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What is common?
models
What is common?
[… are representations of something else]
models… are not the real thing!
models… are simpler than the real thing!
models
models… capture different aspects
models… combat complexity
models… are indispensable for bigger projects
bigger roles in
models
Modelling your way out of complexity: Other useful
CS2103/T, Lecture 10, Part 2, [Oct 24, 2014]
models for what?
models for what?
i. for analysis
iii. as a blueprint
ii. for communication
In CS2103?
models for what?Most common use
models for what?Most common use
Nope, we don’t use UML
diagrams
i. for analysis ii. for communication
iii. as a blueprint
models for what?Most common use
i. for analysis ii. for communication
iii. as a blueprint
iii. as a blueprint
Model-Driven Development
Mobile, desktop, etc.Java, C++, etc.
Generate!
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
……………………………. ……………………………
…………………………….…………………………….…………………………….…………………………….
…………………………….…………………………….…………………………….…………………………….
Behav
ior di
agra
msStructure diagrams
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
……………………………. ……………………………
…………………………….…………………………….…………………………….…………………………….
…………………………….…………………………….…………………………….…………………………….
What is the object/class structure?
Problem Domain
Domain Analysis
Snakes&LaddersGame
Player
plays
Piece
Board
Square
Turn
number
owns
pla
yed
on
100
takes
is
on
2..*
1
*
AutoMover
Star
ts
in
1
1
*has
Die
FaceValue
dieValue
Ends
in
1
moves piece from
moves piece to
1
1
nameid
= Conceptual Class Diagrams
OO Domain Model
1
0..1
Snake
Ladder
Snakes&LaddersGame
Player
plays
Piece
Board
Square
Turn
number
owns
pla
yed
on
100
takes
is
on
2..*
1
*
AutoMover
Star
ts
in
1
1
*has
Die
FaceValue
dieValue
Ends
in
1
moves piece from
moves piece to
1
1
OO Domain Model
1
0..1
Snake
Ladder
nameid
*
Snakes&LaddersGame
Player
plays
Piece
Board
Square
Turn
number
owns
pla
yed
on
100
takes
is
on
2..*
1
*
AutoMover
Star
ts
in
1
1
*has
Die
FaceValue
dieValue
Ends
in
1
moves piece from
moves piece to
1
1
OO Domain Model
1
0..1
Snake
Ladder
nameid
*
Which class is least likely to appear in an OODM?
a) Student b) Grade c) StudentArrayListd) AcademicMentor
Pause video
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Behavior diagrams
OO domain models ……………………………
…………………………….…………………………….…………………………….…………………………….
…………………………….…………………………….…………………………….…………………………….
Structure diagrams
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models ……………………………
…………………………….…………………………….…………………………….…………………………….
…………………………….…………………………….…………………………….…………………………….
Package diagram
Package diagram Deployment diagram
Package diagram Deployment diagram
Component diagram
Component diagram
Composite structure diagram
Deployment diagramPackage diagram
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models ……………………………
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
…………………………….…………………………….…………………………….…………………………….
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Behavior diagrams
OO domain models ……………………………
…………………………….…………………………….…………………………….…………………………….
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
Structure diagrams
What is the workflow?
What is the workflow?
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
actions
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Action 2
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
Show logo
Show ‘loading’ screen
Load file
Show file
Create file
[first time use]
init file
Activity Diagram
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
Are the other paths allowed?
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
Pause video
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
A
B
F
E
i. ABCEF
ii. ADBCF
iii. ABECF
iv. ABCF
v. ABCEDF
vi. ACBEF
D
C
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Behavior diagrams
OO domain models Activity diagrams
…………………………….…………………………….…………………………….…………………………….
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
Structure diagrams
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models Activity diagrams
…………………………….…………………………….…………………………….…………………………….
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
State-dependent behavior
An object, a component, or a whole system.
Who’s there?
hmmp…
come here baby
Go away
Ha?
Knock knock…
State-dependent behavior
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State-dependent behavior
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State-dependent behavior
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
states
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
state transitions
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
triggers
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
guard conditions
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
activity
PRE_GAME
LOST
READYnew
IN_PLAY
WON
deduce
deducededuce
deduce
[incorrect deduction]
[incorrect deduction]
[correct deduction]
[correct deduction && no more cells to deduce]
deduce [correct deduction && more cells to deduce]
/start timer
/stop timer
/stop timer
State Machine Diagram
State Machine Diagram
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models Activity diagrams
State Machine Diagrams…………………………….…………………………….…………………………….
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models Activity diagrams
State Machine Diagrams…………………………….…………………………….…………………………….
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
Timing diagram
Timing diagram Interaction overview diagram
Timing diagram Interaction overview diagram
Communication diagram
Timing diagram Interaction overview diagram
Class diagramsObject diagrams
Use casesSequence diag.
UML models
Structure diagrams Behavior diagrams
OO domain models Activity diagrams
State Machine diagramsTiming diagramsInteraction overview diag.Communication diag.
Package diagramsDeployment diagramsComponent diagramsComposite structure diag.
Use
Be aware