Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 4, Problem 4.2E
Program Plan Intro
Given Information:
In an automated railway ticket-issuing system, users need to select their destination and input a credit card and a personal identification number. A menu display of potential destinations is activated, along with a message to the user to select destination after the user presses the start button when the rail ticket is issued. Users are requested to input their credit card after a destination has been selected and the validity of credit card is validated and the user is then requested to input a personal identifier and if validated then ticket is issued.
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ATM Machine ATM machines are used to withdraw and deposit cash in addition to make balance inquiries. The user enters a card in the ATM's card reader, then the ATM, and through its console screen, asks the user to enter the card 4 digit PIN number. If the PIN is verified by the Bank (which keeps a list of bank accounts), the ATM will present the user with a menu of the available choices (Transactions), otherwise, invalid PIN message will be displayed, users can try to enter the PIN three times after which the card will be claimed by the machine. If the user choses to withdraw, he will be presented with a menu of a specific amounts or he can enter the amount, if the user balance is sufficient and if the cash dispenser has the amount available, the cash amount will be dispensed from the cash dispenser. 1. Withdraw 2. Balance inquiry At any time during a transaction, the user can choose to cancel and thus end the transaction 1. Ready: waits the user to enter the Card 2. Card Card…
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.
(Relevant to Software Requirement Engineering).
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.
Chapter 4 Solutions
Software Engineering (10th Edition)
Ch. 4 - Identify and briefly describe four types of...Ch. 4 - Prob. 4.2ECh. 4 - Prob. 4.3ECh. 4 - Prob. 4.4ECh. 4 - Prob. 4.5ECh. 4 - Suggest how an engineer responsible for drawing up...Ch. 4 - Prob. 4.7ECh. 4 - Prob. 4.8ECh. 4 - When emergency changes have to be made to systems,...Ch. 4 - Prob. 4.10E
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