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Software Engineering · End Term · 13 Sept 2026 · May 2026 term

Question 14: A movie-ticket booking application currently supports pa…

Question 14

+4 marksOne correct option

A movie-ticket booking application currently supports payments through Credit Card, UPI, and Net Banking. The booking module creates payment objects directly as shown below.

The company plans to introduce Apple Pay, Google Pay, and additional payment methods in future releases. During code reviews, the architects observe that every new payment method requires changes to the booking module, increasing maintenance effort and the possibility of introducing defects.
Which design pattern would best improve extensibility by separating object creation from the booking module?

  1. A

    Builder

  2. B

    Observer

  3. C

    Factory

  4. D

    Facade

Show answer

Correct answer

  • C

    Factory

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Question 14 of 28 in the IIT Madras BS Software Engineering (Software Engineering) End Term paper sat on 13 Sept 2026, in the May 2026 term (Software Engineering 13 Sep 26). It carries 4 marks.

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