Making a Class Diagram

(1)

Making a Class Diagram

(2)

Introduction of Class Diagram

(CD)

Course : Rekayasa Perangkat Lunak, Aetthea, Elektro Unsoed, http://aetthea.blog.unsoed.ac.id,

2014 2



Visualisasi struktur kelas-kelas dari suatu sistem.



CD adalah

blueprints

dari sebuah sistem atau sub sistem



CD memperlihatkan hubungan antarkelas dan penjelasan

detail tiap-tiap kelas di dalam model desain dari suatu

sistem.



Selama proses

analisis

, CD memperlihatkan

aturan-aturan dan tanggung jawab entitas yang menentukan

perilaku sistem.



Selama tahap

desain

, CD berperan menangkap struktur

dari semua kelas yang membentuk arsitektur sistem

yang dibuat



CD juga merupakan fondasi untuk component diagram

(3)



Finding Objects



Identifying Responsibilities



Specifying Static Behavior



Specifying Dynamic Behavior



Identifying Relationships

(4)



A set, collection, group, or configuration cont

aining members regarded as having certain a

ttributes or traits in common; a kind or

category.

[http://www.thefreedictionary.com/class]



Biology A taxonomic category ranking below

a phylum or division and above an order.

See Table at

taxonomy.

(5)



A class diagram is an illustration of the relationships

and

source

code dependencies among classes in

the Unified Modeling Language (UML).



In this context, a

class

defines the

method

s and

variable

s in an

object

,

which is a specific entity in a program or

the unit of code representing that entity.



Class diagrams are useful in all forms of

object-oriented programming (OOP). The concept is

several years old but has been refined as OOP

modeling paradigms have evolved.

(6)



Be depicted as a Rectangle



There are three parts such as name of class

(A), attributes of class (B), methods of class

(C)

2014 6

Class in UML

A

B

(7)



Using “noun” as a name of class

Class in UML

A

(8)



Identify attributes : Look at all the

adjectives and possesive phrases in the

requirements document

2014 8

Class in UML

(9)



Identify services/methods: Look at all the

verbs in the requirements document

Class in UML

C

(10)



It has some relationship among class such

as inheritance (A), aggregation/composition

(B), Association (C).

2014 10

Class in UML

(11)



It has some relationship among class such

as inheritance (A), aggregation/composition

(B), Association (C).

Class in UML

B

(12)



Drag and Drop a Rectangle Form

2014 12

(13)



Reverse Code

(14)

(15)

Reverse Engineering

(16)

2014 16

(17)

(18)

2014 18

Identifying a Class

Is this

a

(19)