Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing sy
Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing sy
Chapter12: Using Controls
Section: Chapter Questions
Problem 18RQ
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- 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.
- Rewrite the above description using the structured approach how to resolve the identified ambiguities in an appropriate way.
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