OOSE07 - Bank Accounts Management System
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Transcript of OOSE07 - Bank Accounts Management System
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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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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x2
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
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). 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,
Investments and Consumer), the branches are considered subdivisions of the
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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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x3
Draft Class Diagram with classes Clientand Account, and their association
accountHolder
Client
Account
accountNumbertype
*
1..2
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x4
Draft Class Diagram with Accountattributes and subclasses
accountHolde
Client
MortgageAccountChequingAccount
Account
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
*
*
1..2
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x5
Draft Class Diagram with CreditCardand attributes ofAccount subclasses
Client
MortgageAccount
collateralProperty
ChequingAccount
Account
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
expiryDatebrand
CreditCard
name
*
1..*
*
1..2accountHolder
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x6
Problem statement - checking off what we have done(Classes, associations, attributes, generalizations)
Thissystem 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
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). 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,
Investments and Consumer), the branches are considered subdivisions of the
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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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.
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x8
Draft Class Diagram with Branch andEmployee
accountHolder
Client
MortgageAccount
collateralProperty
ChequingAccount
Branch
Account
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
expiryDatebrand
CreditCard
name
Employee
*
personalBanker*
1..*
*
1..2
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problem x9
Looking at what we know about Branches(Classes, associations, attributes, generalizations)
Thissystem 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 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
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
expiryDatebrand
CreditCard
name
subdivision
Employee
*
manager0..1
0..1 *
worksFor
personalBanker*
1..*
0..1
*
1..2
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problemx11
Problem statement after addingOrganizationalUnit(Classes, associations, attributes, generalizations)
Thissystem 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
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). 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,
Investments and Consumer), the branches are considered subdivisions of the
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.
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problemx13
Draft Class Diagramwith AccountType
*
accountHolder
Client
MortgageAccount
collateralProperty
AccountType
interestRatemonthlyFeechecksAllowedinsuranceAvailable
ChequingAccount
Branch
OrganizationalUnit
Account
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
expiryDatebrand
CreditCard
name
subdivision
Employee
*
manager0..1
0..1 *
worksFor
personalBanker*
1..*
*
0..1
*
1..2
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Lethbridge/Laganire 2002 Chapter 5: Modelling with classes - Bank Account Problemx14
Bank Account System Class diagramwith final touches
*
accountHolder
Client
name
MortgageAccount
collateralProperty
AccountType
interestRatemonthlyFeechecksAllowedinsuranceAvailableperiodicFeeperiod
ChequingAccount
Branch
addressnumber
OrganizationalUnit
Person
Account
accountNumberopenedDateclosedDateinterestRatemonthlyFeebalancecreditOrOverdraftLimit
CreditCardAccount
expiryDatebrand
CreditCard
name
subdivision
Employee
*
manager0..1
0..1 *
worksFor
personalBanker*
1..*
*
0..1
*
1..2