UGC NET Computer Science December 2019 | Question 83

Question 83

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In a system for a restaurant, the main scenario for placing order is given below :

1. Customer reads menu
2. Customer places order
3. Order is sent to kitchen for preparation
4. Ordered items are served
5. Customer requests for a bill for the order
6. Bill is prepared for this order
7. Customer is given the bill
8. Customer pays the bill

A sequence diagram for the scenario will have atleast how many objects among whom the messages will be exchanged.

1. 1. 3
2. 2. 4
3. 3. 5
4. 4. 6

Answer : 3. 5

Explanation

A sequence diagram for the scenario will have atleast 5 objects among whom the messages will be exchanged. These 5 members are as below:

1. Customer
2. Order Taking Person
3. Cook
4. Serving person
5. Bill Generator and receiver

So, option 3 is correct answer

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