Introduction to UML

Introduction to UML Diagramming

Problems have many solutions

Design is about choosing one http://morgueﬁle.com/archive/?display=66493 http://ﬂickr.com/photos/chidorian/4795357/in/set-384742/

Why model?

To visualize http://www.rohdesign.com/weblog/archives/000896.html

To communicate Electronic schematic of GEE radar (AMES type 7000) used in second world war by the allies

To emphasize DaVinci’s Flush Toilet

The UML is a standard graphical notation for describing object-oriented software systems

Use UML to visualize, communicate, and emphasize your choices

1 Library checkout 1 Membership return start : Date renewal : Date * due : Date LendRecord Lendable 1 returned : Boolean id newArrival : Boolean * LendRecord(lendable, member, date) calcDueDate(member): Date isDue() : Boolean renew(Date) * Book CD 1 * Member DVD Goal: Understand this

: Library aMember aLendable checkout(lendable, member) canBorrow(lendable) numOut(member) opt calcDueDate(member) { canBorrow == true } dueDate record new aLendRecord And this

Class Diagram Elements Class Package Class Attributes Operations

Class Diagram Elements Association multiplicity navigability role

Class Diagram Elements Complex Associations association class key value

Class Diagram Elements Dependency depends on

Class Diagram Elements Generalization superclass subclasses

Class Diagram Elements Providing and Requiring Interfaces implementor uses interface

left BinaryTree 1 0..1 0..1 1 add(obj: Obect) remove(obj) root TreeNode Object contains(obj):bool 0..1 right <<interface>> TreeIterator hasNext : bool next : Object PrefixTreeIterator PostfixTreeIterator InfixTreeIterator Example: Binary tree

1 Library checkout 1 Membership return start : Date renewal : Date * due : Date LendRecord Lendable 1 returned : Boolean id newArrival : Boolean * LendRecord(lendable, member, date) calcDueDate(member): Date isDue() : Boolean renew(Date) * Book CD 1 * Member DVD Example: Library Classes

Sequence Diagram Elements Object lifeline object lifeline

Sequence diagram elements Object activation message activation return bar

Sequence diagram elements Object creation and deletion object creation object destruction

Sequence diagram elements Callbacks

Sequence diagram elements Object calling itself

Sequence diagram elements Loops operator guard interaction frame

Sequence diagram elements Conditionals alternative separator

aPanel child : Component dc : DrawingContext paint(dc) loop paint(dc) drawOperation(args) { forEach child } Example: Panel painting

: Library aMember aLendable checkout(lendable, member) canBorrow(lendable) numOut(member) opt calcDueDate(member) { canBorrow == true } dueDate record new aLendRecord Example: Library Checkout

1: checkout(lendable, member) 1.1: canBorrow(lendable) :Library 1.3: record aMember 1.1.1: numOut(member) 1.2: calcDueDate(member) <<create>> 1.3.1: new aLendable aLendRecord Communication Diagram

Data View Model SQLServer Oracle Package Diagram

Actor Actor Actor start Activity fork Activity Activity {condition} Activity Activity {condition} join end Activity Diagram

<<include>> Common Role Use Case Use Case Role <<include>> Use Case Use Case Role Role Use Case Diagram

UML in UML

Resources • UML Distilled by Martin Fowler • http://bdn.borland.com/article/ 0,1410,31863,00.html • http://www.uml.org • http://www.agilemodeling.com

(cc) 2006 Lou Franco Released under the following creative commons license Attribution-NonCommercial-ShareAlike 2.0 http://creativecommons.org/licenses/by-nc-sa/2.0 Each photograph used has a URL for attribution. Please see the original site for the photo’s license.

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Introduction to UML

by Lou Franco on Jun 25, 2010

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Introduction to UML — Presentation Transcript