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Assignment No.04
Dated: Aug 03, 15
Dear Students,
This is to inform that Assignment No.04 (Graded) has been uploaded on VULMS and due date of assignment submission will be Aug 07, 2015.

Objective: Practical understanding of Object Oriented Design

ABC super store is a famous shopping store in the posh area of City XYZ where customers come and purchase different items for their needs. After purchasing these items customers have to pass through billing process where they are served by a cashier. A cashier scans different items and price is automatically generated against every item and after that final invoice is generated. Super Store registered the regular customers and produces a Customer ID for registered customers.
Final Invoice is printed for the items purchased by this Customer. Customers can also exchange their items or can return item to cashier who have to update the generated invoice for returned or exchanged items. Finally, cashier takes cash and print the invoice. Invoice contains current system date, cashier name and system time.

Your task is to identify the classes, objects, attribute of objects (characteristic of objects), and methods (functions/operations related to objects).


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ABC super store is a famous shopping store in the posh area of City XYZ where customers come and purchase different items for their needs. After purchasing these items customers have to pass through billing process where they are served by a cashier. A cashier scans different items and price is automatically generated against every item and after that final invoice is generated. Super Store registered the regular customers and produces a Customer ID for registered customers.
Final Invoice is printed for the items purchased by this Customer. Customers can also exchange their items or can return item to cashier who have to update the generated invoice for returned or exchanged items. Finally, cashier takes cash and print the invoice. Invoice contains current system date, cashier name and system time.

Your task is to identify the classes, objects, attribute of objects (characteristic of objects), and methods (functions/operations related to objects).

asif bhai...finally daigram banay gi ya theory likhni hs???

Ik sayapa mukaya naeen, dooja aa gaya... Toba, Any how gal peya dholl te wajana pena

I agree with you.

dont wory we will do it Inshallah with mutual help........

i think in this assignment we have to draw structure of the given task. It is like assignment no. 3

focus on study discussion..

Don,t loose heart..its easy and related to previous assignment.

Classes
A class is defined as
“The purpose of a class is to specify a classification of objects and to specify the features that characterize the structure and behavior of those objects.”
A class is any uniquely identified abstraction, that is, model of a set of logically related objects that share the same or similar characteristics. The purpose of a class is to specify a classification of objects and to specify the features that characterize the structure and behavior of those objects.
An object is an instance of some class. All objects are instances of some class. Instance also carries connotations of the class to which the object belongs.
For example, computers are the domain/Class which can be divided into following sub-classes:
• Laptop computer
• Desktop computer
• Palmtop

Attributes & Methods
Attributes are the characteristics of object / class and methods are the operations related to the object / class.
In order to explain concepts of Class, Object, Attribute, Method, etc, let's consider an example. A company may be interested in creating a database for better customer relationships. For this purpose the company may plan to create a database in the following manner.
Example

Gd, Keep it up...

i have request to all.....please cooperate with Mr. M.Asif.

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