oose07 - bank accounts management system

8/14/2019 OOSE07 - Bank Accounts Management System

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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem 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 an address

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). Eachtype 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 otheremployees. 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 abank

called OOBank. OOBank has manybranches, each of which has an address

and branchnumber. A client opens accounts at a branch. Each account is



account (which has aproperty as collateral), a chequing account, and a credit


to it). It is possible to have ajoint account(e.g. for a husbandand wife). Eachtype 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,


Consumer Division. Each division has a managerand a set of otheremployees. Each customer is assigned a particular employee as his or her

personal banker.


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Draft Class Diagram with classes Clientand Account, and their association

accountHolder

Client

Account

accountNumbertype

*

1..2


4/14


Draft Class Diagram with Accountattributes and subclasses

accountHolde

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 abank











Consumer Division. Each division has a managerand a set of otheremployees. Each customer is assigned a particular employee as his or her

personal banker.


7/14 Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x7

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

Thissystem provides the basic services to managebank accounts at abankcalled

OOBank. OOBank has manybranches, each of which has an address 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 aproperty 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 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 and

subdivisions (such asPlanning,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.


8/14


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)


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

address and branchnumber. 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 aproperty 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 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 Consumer), the

branches are considered subdivisions of the Consumer Division. Eachdivision has a managerand a set of otheremployees. Each customer is

assigned a particular employee as his or her personal banker.


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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problemx10

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


11/14


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












Consumer Division. Each division has a managerand a set of other

employees. Each customer is assigned a particular employee as his or her

personal 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

oose07 - bank accounts management system

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