Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing sy

Microsoft Visual C#
7th Edition
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Joyce, Farrell.
Chapter12: Using Controls
Section: Chapter Questions
Problem 18RQ
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  1. Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing systems: An automated ticket-issuing system sells rail tickets. Users select their destination and input a credit card and a personal identification number. The rail ticket is issued and their credit card account charged. When the user presses the start button, a menu display of potential destinations is activated, along with a message to the user to select a destination. Once a destination has been selected, users are requested to input their credit card. Its validity is checked and the user is then requested to input a personal identifier. When the credit transaction has been validated, the ticket is issued.

 

  1. Rewrite the above description using the structured approach how to resolve the identified ambiguities in an appropriate way.
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