Question

A banking system provides users with several services: (i) to check their accounts to see recent
transactions and balances; (ii) to pay bills online; (iii) to buy and sell investments. All of these services
require a secure log -in. If the system crashes or the network connection fails during a transaction, it is
essential that all the financial data is left in a consistent state.
(a) Draw use case diagrams for these requirements.
(b) Give the use case specification/ description for paying a bill online

Answer 1

Answer:

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Explanation:

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