Notes

Classes needed for the problem :
• Data Definition Class: Order
• Data Definition Class: Customer
• Data Definition Class: InternetOrder
• Data Definition Class: StatusUpdate
• Data Definition Class: MailOrder
• Data Definition Class: PhoneOrder
• Implementation Class: OrderTracker, or something like this

I have reduced marks for only classes that you have missed in your document . The above mentioned classes are set of all classes needed for your problem. i have given the above list for your reference

Relationships needed b/w classes
• Inheritance hierarchy between Order (superclass) and InternetOrder, MailOrder, PhoneOrder (subclasses)
• Association or Aggregation relationship between Order and Customer
• Association or Aggregation relationship between InternetOrder and StatusUpdate
I have reduced marks for only for the relationships that you have missed in your document . The above mentioned list is the set of all relationships needed for your problem. i have given the above list for your reference
instance variables needed for the problem
• Order
o id number
o customer information (Object Reference)
o handling instructions
• Customer
o name
o phone number
o company name
• InternetOrder
o password
o email address
o list of status updates (Object Reference)
o numeric code
• StatusUpdate
o customer service representative name
o update text
• MailOrder (There should be no new instance variables in this class)
• PhoneOrder
o callback phone number
o best call time
I have reduced marks for only for the instance variables that you have missed in your document . The above mentioned list is the set of all instance variables needed for your problem. i have given the above list for your reference