slides for chapter 5 video

8/14/2019 Slides for Chapter 5 Video

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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Pro x1

Bank Accounts Management System - p. 448This system provides the basic services to manage bank accounts at a

bank called OOBank. OOBank has many branches, each of which has anaddress and branch number. A client opens accounts at a branch. Each

account is uniquely identified by an account number; it has a balance

and a credit or overdraft limit. There are many types of accounts,

including: A mortgage account (which has a property as collateral), a

chequing account, and a credit card account (which has an expiry date

and can have secondary cards attached to it). It is possible to have a joint

account (e.g. for a husband and wife). Each type of account has a

particular interest rate, a monthly fee and a specific set of privileges (e.g.

ability to write cheques, insurance for purchases etc. OOBank is divided

into divisions and subdivisions (such as Planning, Investments and

Consumer), the branches are considered subdivisions of the Consumer

Division. Each division has a manager and a set of other employees.

Each customer is assigned a particular employee as his or her personal

banker.


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Marking nouns: potentially good classes, definitely

badclasses, and classes we are unsure aboutThissystem provides the basic services to managebank accounts at a

bankcalled OOBank. OOBank has manybranches, each of which has anaddress and branchnumber. A client opens accounts at a branch. Each



including: A mortgage account (which has aproperty as collateral), a


and can have secondary cards attached to it). It is possible to have ajoint

account(e.g. for a husbandand wife). Each type of account has a

particularinterest rate, a monthly fee and a specific set ofprivileges (e.g.

ability to write cheques, insurance forpurchases etc. OOBank is divided

into divisions andsubdivisions (such asPlanning,Investments and


Division. Each division has a managerand a set of otheremployees.


banker.


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Draft Class Diagram with classes Clientand Account, and their association

accountHolder

Client

Account

accountNumbertype

*

1..2


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Draft Class Diagram with Accountattributes and subclasses

accountHolder

Client

MortgageAccountChequingAccount

Account

accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit

CreditCardAccount

*

*

1..2


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Draft Class Diagram with CreditCardand attributes ofAccount subclasses

Client

MortgageAccount

collateralProperty

ChequingAccount

Account


CreditCardAccount

expiryDatebrand

CreditCard

name

*

1..*

*

1..2accountHolder


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Problem statement - checking off what we have done(Classes, associations, attributes, generalizations)

Thissystem provides the basic services to managebank accounts at a

bankcalled OOBank. OOBank has manybranches, each of which has an

address and branchnumber. A client opens accounts at a branch. Each













banker.


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Draft Class Diagram with Branch andEmployee

accountHolder

Client

MortgageAccount

collateralProperty

ChequingAccount

Branch

Account


CreditCardAccount

expiryDatebrand

CreditCard

name

Employee

*

personalBanker*

1..*

*

1..2


9/14


Looking at what we know about Branches(Classes, associations, attributes, generalizations)













Consumer), the branches are considered subdivisions of the ConsumerDivision. Each division has a managerand a set of otheremployees.


banker.


10/14


Draft Class Diagram withOrganizationalUnit

*

accountHolder

Client

MortgageAccount

collateralProperty

ChequingAccount

Branch

OrganizationalUnit

Account


CreditCardAccount

expiryDatebrand

CreditCard

name

subdivision

Employee

*

manager0..1

0..1 *

worksFor

personalBanker*

1..*

0..1

*

1..2


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Problem statement after addingOrganizationalUnit(Classes, associations, attributes, generalizations)
















banker.


12/14


13/14


Draft Class Diagramwith AccountType

*

accountHolder

Client

MortgageAccount

collateralProperty

AccountType

interestRatemonthlyFeechecksAllowedinsuranceAvailable

ChequingAccount

Branch

OrganizationalUnit

Account


CreditCardAccount

expiryDatebrand

CreditCard

name

subdivision

Employee

*

manager0..1

0..1 *

worksFor

personalBanker*

1..*

*

0..1

*

1..2


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Bank Account System Class diagramwith final touches

*

accountHolder

Client

name

MortgageAccount

collateralProperty

AccountType

interestRatemonthlyFeechecksAllowedinsuranceAvailableperiodicFeeperiod

ChequingAccount

Branch

addressnumber

OrganizationalUnit

Person

Account


CreditCardAccount

expiryDatebrand

CreditCard

name

subdivision

Employee

*

manager0..1

0..1 *

worksFor

personalBanker*

1..*

*

0..1

*

1..2

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