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Object Identification:

Here is a description from the objects we identified regarding our project.

Mall

Mall will give you just one roof for a number of shops. The mall performs the development of some different shops, like a book shop, footwear store, etc. The mall greets an coming customer, performs authentication for him/her and allocates him/her the shopping cart software. Mall is definitely the customer with a summary of different stores availble and enables the client to look at any one of stores within the mall.

A few of the things a person can perform in the mall are:

Get a summary of available stores

Obtain a shopping cart software

Enter an outlet /shop

name – the specific mall

shops – an accumulation of stores of various types

customers – the shoppers presently within the mall

owner – who owns the mall.

guestbook – an accumulation of comments by different customers

void enter(Customer c) – customer c enters the mall

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void exit(Customer c) – customer c exits the mall

ShoppingCart getShoppingCart – returns a clear shopping cart software

Enumeration customers() – returns an enumeration from the customers within the mall

void checkout(shoppingCart cart) – checkout and buy the products within the shopping cart software

Shop: The Abstract superclass for any shop

name – the specific store

storeId – unique ID for that store

products – products readily available for purchase within the store

customers – the shoppers presently within the store

owner – who owns the store

abstract void enter(Customer c) – customer c enters the shop

abstract void exit(Customer c) – customer c exits the shop

Enumeration customers() – returns an enumeration from the customers within the store

Enumeration products() – returns an enumeration from the products readily available for purchase within the store

abstract void addToCart(shopingCart, item) – add a product towards the shopping cart software

abstract void removeFromCart(shopingCart, item) – remove a product in the shopping cart software

Book shop: A potential subclass of Store

ShoeStore: A potential subclass of Store

GameStore: A potential subclass of Store

Item: A product for purchase inside a store

itemName – the specific item

itemId – unique ID for that item

storeId – the ID from the store that the product came

cost – the cost from the item

Customer: A person going to the mall. These kinds extends the overall person class.

shoppingCart – the shopping cart software getting used through the customer

store – the shop the client is presently in.

ShoppingCart. A shopping cart software for that customer.

products – products presently within the shopping cart software

Enumeration products() – returns an enumeration from the products presently within the cart

addItem()- adds confirmed item to collection

removeItem() – removes the given item in the collection.

calcSubTotal() – calculates the incremental total of all of the products within the cart.

GuestBook:

Customers going to the mall can send there comments concerning the shopping experience in the mall to mall admin via guestbook. Each cutomer may have comment being an attribute field and also the guestbook may be the assortment of such comments and it is a characteristic from the Mall class.

MallOwner: Who owns the mall or mall admin as referred within the class diagram above. These kinds also extends the individual class.

ShopOwner: Who owns a store. Each shop includes a owner. These kinds also extends the individual class.

Person:

With regard to brevity, the needed accessors and mutators aren’t indexed by the above mentioned class descriotion.

Class Diagram: Following may be the class diagram for the project.

Class Responsibility Collaborations (CRC):

Attributes: name, address, phone, email.

Responsibilities:

Collaborations:

Add /Delete Comments.

Collaborations

Sequence Diagram:

Customer entering the mall will get authenticated and will also be allotted a shopping cart software. On effective authentication, he/she will be provided using the listing of stores available. On entering the shop he/she will be provided using the listing of products available at a shop. This complete sequence continues to be taken by using sequence diagram.

Customer purchasing a product in a shop within the mall has been taken by using sequence diagram.

ShopOwner, who’s proposing for that placing a shop within the mall transmits an offer to MallOwner, MallOwner consequently approves or disapproves the proposal. This sequence continues to be taken in following sequence diagram.

Guestbook: Every customer going to the mall can send his/her comments to MallOwner. This sequence continues to be taken in following sequence diagram.

Design Patterns: We advise to capture following design patterns within our design.

1. Singleton: Mall object is really a singleton class. Just one object of the type exists throughout the execution of program. Also, all of the stores within the mall are singleton classes. Whenever the mall gets initialize, all of the stores will also be getting initialized

This really is being taken by using code.

2. Iterator: Whenever the mall should really present listing of stores it has, we’re presenting the consumer using the Iterator class supplied by java which captures the Iterator design patterns.

Also, whenever the store should really present their email list of products it’s we’re while using Iterator class in java to get this done.

3. Observer: All stores are observable objects. Particularly, each time a new item will get put into the shops within the mall, customer has been notified concerning the change. All customers automatically are assumed to possess requested with this facility.

4. Condition: The client object might have different states while going to the mall and shopping in numerous stores from the mall. Following diagram captures three different states the client object will go into.

a. Unauthorized: The client just joined the mall and it is yet to login.

b. EnteredShop: The client has selected among the shops for shopping and it has joined in it. He might eyebrows and choose products within the store. Place the selected products within the cart that is allotted to him as he joined the store.

c. AuthorizedInMall: The client either just logged in or has emerge from among the shops and exploring within the mall. Either he’ll leave the mall or he/she’ll enter another shop within the mall.

Conclusion and future work:

The work enabled us to recognize all the design patterns completely. The Iterator, Singleton, Observer are crucial design patterns to be able to capture the program style of such departmental stores. Various techniques like use situation analysis, condition machine, CRC, sequence diagram are useful in prototyping software design.

The work could be improved by the MVC design technique. Much more of design patterns for example factory patterns could be incorporated within the project.

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