Privileged customers are those that made at least 10 orders to the company. A customer can order items to the branch in his city, if any. The order will than b recorded by this branch. An order consists of a list of items. A discount of 5% will b applied for privileged customers. A discount of 10% will be applied if the order contain more than 8 items or if the total price of the order exceeds 100. Customer Order Item name: String 0. date:Date /discount int name: String name: String price:int 0. 0. canMakeOrder():Boolean isPrivileged()Boolean 0.. 0.

Computer Networking: A Top-Down Approach (7th Edition)
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Consider the following class diagram that models a company activities.
A company is composed of many branches and each branch is located in a different
city. Company's customers are subdivided into two categories: Regular and Privileged.
Privileged customers are those that made at least 10 orders to the company.
A customer can order items to the branch in his city, if any. The order will than be
recorded by this branch. An order consists of a list of items. A discount of 5% will be
applied for privileged customers. A discount of 10% will be applied if the order contains
more than 8 items or if the total price of the order exceeds 100.
Customer
Order
Item
name: String
name: String
0. date:Date
/discount int
name: String
priceint
0.
0.
canMakeOrder():Boolean
isPrivileged() Boolean
0.
0.
City
Branch
0..1
name: String
naner String
Express the following constraints in OCL.
1. The number of items in an order does not exceed 15.
2. The number of items in an order does not exceed 10 for regular non-
privileged customers.
3. Give the body expression of the method canMakeOrder in the class
Customer. This method returns true only if a branch is located in the
city where the customer resides.
4. Give the body expression of the method isPrivileged in the class Customer
5. Give the expression of the derived attribute discount in the class Order
6. A customer can order items only to the branch in his city.
Transcribed Image Text:Consider the following class diagram that models a company activities. A company is composed of many branches and each branch is located in a different city. Company's customers are subdivided into two categories: Regular and Privileged. Privileged customers are those that made at least 10 orders to the company. A customer can order items to the branch in his city, if any. The order will than be recorded by this branch. An order consists of a list of items. A discount of 5% will be applied for privileged customers. A discount of 10% will be applied if the order contains more than 8 items or if the total price of the order exceeds 100. Customer Order Item name: String name: String 0. date:Date /discount int name: String priceint 0. 0. canMakeOrder():Boolean isPrivileged() Boolean 0. 0. City Branch 0..1 name: String naner String Express the following constraints in OCL. 1. The number of items in an order does not exceed 15. 2. The number of items in an order does not exceed 10 for regular non- privileged customers. 3. Give the body expression of the method canMakeOrder in the class Customer. This method returns true only if a branch is located in the city where the customer resides. 4. Give the body expression of the method isPrivileged in the class Customer 5. Give the expression of the derived attribute discount in the class Order 6. A customer can order items only to the branch in his city.
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