Bank Accounts Management System – p. 448 This system provides

Bank Accounts Management System - p. 448 This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x1

Marking nouns: potentially good classes, definitely bad classes, and classes we are unsure about This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x2

Draft Class Diagram with classes Client and Account, and their association Client 1.2 accountHolder Account * accountNumber type Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x3

Draft Class Diagram with Account attributes and subclasses Client * Account 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit ChequingAccount Lethbridge/Laganière 2002 MortgageAccount CreditCardAccount Chapter 5: Modelling with classes - Bank Account Pro blem x4

Draft Class Diagram with CreditCard and attributes of Account subclasses Client * Account 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit CreditCard name 1.* ChequingAccount MortgageAccount collateralProperty Lethbridge/Laganière 2002 CreditCardAccount expiryDate brand Chapter 5: Modelling with classes - Bank Account Pro blem x5

Problem statement - checking off what we have done (Classes, associations, attributes, generalizations) This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x6

Looking at what we know about Employees (Classes, associations, attributes, generalizations) This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x7

Draft Class Diagram with Branch and Employee Client Employee personalBanker Branch * Account * 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit CreditCard name 1.* ChequingAccount MortgageAccount collateralProperty Lethbridge/Laganière 2002 CreditCardAccount expiryDate brand Chapter 5: Modelling with classes - Bank Account Pro blem x8

Looking at what we know about Branches (Classes, associations, attributes, generalizations) This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x9

Draft Class Diagram with OrganizationalUnit worksFor subdivision * OrganizationalUnit 0.1 manager 0.1 * 0.1 Employee Client personalBanker Branch * Account * 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit CreditCard name 1.* ChequingAccount MortgageAccount collateralProperty Lethbridge/Laganière 2002 CreditCardAccount expiryDate brand Chapter 5: Modelling with classes - Bank Account Pro blem x10

Problem statement after adding OrganizationalUnit (Classes, associations, attributes, generalizations) This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x11

Thinking about how to deal with privileges (Classes, associations, attributes, generalizations) This 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). 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’. Lethbridge/Laganière 2002 Chapter 5: Modelling with classes - Bank Account Pro blem x12

Draft Class Diagram with AccountType worksFor subdivision * OrganizationalUnit 0.1 manager 0.1 * 0.1 AccountType Employee interestRate monthlyFee checksAllowed insuranceAvailable personalBanker Branch * * Account Client * 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit CreditCard name 1.* ChequingAccount MortgageAccount collateralProperty Lethbridge/Laganière 2002 CreditCardAccount expiryDate brand Chapter 5: Modelling with classes - Bank Account Pro blem x13

Bank Account System Class diagram with final touches worksFor Person subdivision * name OrganizationalUnit 0.1 manager 0.1 AccountType Employee interestRate monthlyFee checksAllowed insuranceAvailable periodicFee period personalBanker Branch address number * 0.1 * * Account Client * 1.2 accountHolder * accountNumber openedDate closedDate interestRate monthlyFee balance creditOrOverdraftLimit CreditCard name 1.* ChequingAccount MortgageAccount collateralProperty Lethbridge/Laganière 2002 CreditCardAccount expiryDate brand Chapter 5: Modelling with classes - Bank Account Pro blem x14