Tutorial 6 - Classes & Class Diagrams PDF

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18329328Tutorial 6 - Classes & ClassDiagrams List about EIGHT entity classes PER PACKAGE from the above analysis. Thus, for a team with four students and four packages, the total number of entity classes should be no less than 32. Note that the analysis of the first use case usually reveals ...

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Derick Tran 18329328

Tutorial 6 - Classes & Class Diagrams 2. List about EIGHT entity classes PER PACKAGE from the above analysis. Thus, for a team with four students and four packages, the total number of entity classes should be no less than 32. Note that the analysis of the first use case usually reveals more entity classes and the subsequent use case will reveal less. After analysing all the use cases (and skimming the problem statement), you should be able to define the required number of classes.         

Agent Buyer Seller Client Appointment Property Calendar Address Phone

Class Name

Agent

Description

This class represents Agent’s details in the GWREMS

Relationship

This class relates to Appointment, Sellers, Agency, Buyer

Attributes

AgentID, Type, FirstName, LastName AgentID – unique identified for class named “Agent” Type – Amount of experience with certain properties FirstName – Agents first name LastName – Agents Last Name

Responsibility

Maintains Details of the agents working and the current properties they are working on

Business Rules

Agents can be specialised in buying, selling or auctions. Each agent has their own level or work Agent details are held within agency databases as well as GWRE’s database.

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Derick Tran 18329328 Complexity

Medium

Class Name

Buyer

Description

This class represents Buyer details in the GWREMS

Relationship

This class relates to Client, Contracts, Appointment, Agent

Attributes

BuyerID, FirstName, LastName, Phone, FinancialStatus BuyerID – Unique identifier for class named “Buyer” FirstName – Buyers first name LastName – Buyers last name Phone – Buyers Phone number FinancialStatus – Buyers current financial status

Responsibility

Maintains details of all buyers looking to purchase properties

Business Rules

For buyers to register to buy, they must be a registered client

Complexity

Medium

Class Name Description Relationship Attributes

Responsibility

Seller This class represents Seller details in the GWREMS This class relates to Contract, Buyer, Agent, Property SellerID, Firstname, LastName, Phone, ExpectedPrice SellerID – Unique identifier for class named “Seller” FirstName – Sellers first name LastName – Sellers last name Phone – Sellers phone number ExpectedPrice – The expected price they are looking to sell the property for Maintains details of all sellers, and linking their respective properties on sale

Business Rules

For sellers to register a property, they must be a registered client

Complexity

Medium

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Class Name Description

Client This class represents Client details in the GWREMS

Relationship

This class related to Buyer, Seller, Contact details

Attributes

ClientID, FirstName, LastName, Phone, Email, D.O.B, Password ClientID – is used to uniquely identify clients FirstName – Clients first name LastName – Clients last name Phone – Clients contact number Email – Clients email D.O.B – Clients date of birth Password – Clients unique password to enter account

Responsibility

To keep updated information on the client so when needed, can be cross referenced with this data to verify client’s identity

Business Rules

For a client to be able to login, they need to type in their ClientID and Password correctly.

Complexity

Medium

Class Name

Appointment

Description

This class represents appointment details in the GWREMS

Relationship

This class is related to Buyer, Agent, Seller

Attributes

Date, Time, Duration, AgentID Date – Date of the appointment Time – Time of the appointment Duration – Duration of the appointment AgentID – Unique Identifier for agent class

Responsibility

Maintains and updates details of appointments Notifies agents when new appointment requests are made by buyers or sellers

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Derick Tran 18329328 Business Rules

For a client to create an appointment, they must be registered as a client.

Complexity

Medium

Class Name

Property

Description

This class represents property details in the GWREMS

Relationship

This class is related to Agent, Seller

Attributes

propID, Address, Price, PropDetails, Description propID – Unique identifier for class named “Property” Address – Address details of property Price – Expected price of property PropDetails – Real estate details like size, bed, bath Description – Made by property seller

Responsibility

Maintains and keeps property details up to date via agent or seller

Business Rules

Property must be created by a seller or agent Agent or seller must be registered as a client.

Complexity

Medium

Class Name

Calendar

Description

This class represents Calendar details in the GWREMS

Relationship

This class relates to Seller, Agent, Buyer

Attributes

Date, TimeStatus

Responsibility

Business Rules

Date – Date of the appointment TimeStatus – Availability on certain day Maintains all calendar details and appointments, advises agents of appointment requests A calendar must be approved by the agent. An appointment can only be made by a registered client

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Derick Tran 18329328 Complexity

Medium

Class Name

Address

Description

This class contains all the details of clients and staff or anyone who has a relation in the GWREMS

Relationship

This class relates to staff and clients

Attributes

StrNo, StrName, City, Postcode, State StrNo - Number StrName – Street Name City State Postcode

Responsibility

Maintains all addresses for clients and staff

Business Rules

All addresses must be valid and checked

Complexity

Simple

Class Name

Phone

Description

This class contains all the details of clients and staff or anyone who has a relation in the GWREMS

Relationship

This class relates to staff and clients

Attributes

STDCode, PhoneNumber, PhoneType STDCode – Area code Phone Number Phone Type – Type of device

Responsibility

Maintains all phone numbers that links to addresses for clients and staff

Business Rules

All phone numbers must be valid and checked

Complexity

Simple

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6. Place the classes you have identified into diagrams (approximately TWO class diagrams per package)

“Client” Class Diagram

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“Consultation Details” Class Diagram

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